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  "articleBody": "Neil Sloane shares the comma sequence. Then thoughts turn to immortal kangaroos leaping through minefields. More links & stuff in full description below ↓↓↓\n\nBONUS MATERIAL\\\nA digital curiosity associated with this video - https://www.patreon.com/numberphile/posts/168587472 (open access)\\\nBTS timelapse of this video being filmed (Patrons only) - https://www.patreon.com/numberphile/posts/168593344\n\nSee more Neil Sloane videos on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe\\_llzWmTHMPb9QvV2\n\nNeil is the founder of the On-Line Encyclopedia of Integer Sequences (OEIS): https://oeis.org/\n\nSome OEIS sequences related to this video...\\\nOriginal sequence when we start at 1 - https://oeis.org/A121805\\\nLandmines: https://oeis.org/A367341\\\nNumbers where there are two choices: https://oeis.org/A367346\\\nThe infinite path (strictly speaking, it is the lowest infinite path, because there could be more than one): https://oeis.org/A367620\\\nThe sequence of 0's and 1's that lead to immortality (as we know it so far): https://oeis.org/A399179\n\nVideos from Brady's chemistry trip to Australia (featuring wallabies, kangaroos, and koalas) - https://www.youtube.com/playlist?list=PLD8C8561114777F5A\n\nPatreon: http://www.patreon.com/numberphile\n\nNumberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet\n\nWe are also grateful for support from the Ben Delo Foundation - https://delo.org/\n\nNUMBERPHILE\\\nWebsite: http://www.numberphile.com/\n\nVideo by Brady Haran & Pete McPartlan\n\nNumberphile T-Shirts and Merch: https://teespring.com/stores/numberphile\n\nBrady's videos subreddit: http://www.reddit.com/r/BradyHaran/\n\nBrady's latest videos across all channels: http://www.bradyharanblog.com/\n\nSign up for (occasional) emails: http://eepurl.com/YdjL9\n",
  "authors": [
    "Numberphile"
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  "captured_at": "2026-09-08T10:17:10.166315+00:00",
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  "content_html": "<p>Neil Sloane shares the comma sequence. Then thoughts turn to immortal kangaroos leaping through minefields. More links &amp; stuff in full description below ↓↓↓</p>\n<p>BONUS MATERIAL<br />\nA digital curiosity associated with this video - <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://www.patreon.com/numberphile/posts/168587472\">https://www.patreon.com/numberphile/posts/168587472</a> (open access)<br />\nBTS timelapse of this video being filmed (Patrons only) - <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://www.patreon.com/numberphile/posts/168593344\">https://www.patreon.com/numberphile/posts/168593344</a></p>\n<p>See more Neil Sloane videos on Numberphile: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe%5C_llzWmTHMPb9QvV2\">https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe\\_llzWmTHMPb9QvV2</a></p>\n<p>Neil is the founder of the On-Line Encyclopedia of Integer Sequences (OEIS): <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://oeis.org/\">https://oeis.org/</a></p>\n<p>Some OEIS sequences related to this video...<br />\nOriginal sequence when we start at 1 - <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://oeis.org/A121805\">https://oeis.org/A121805</a><br />\nLandmines: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://oeis.org/A367341\">https://oeis.org/A367341</a><br />\nNumbers where there are two choices: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://oeis.org/A367346\">https://oeis.org/A367346</a><br />\nThe infinite path (strictly speaking, it is the lowest infinite path, because there could be more than one): <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://oeis.org/A367620\">https://oeis.org/A367620</a><br />\nThe sequence of 0's and 1's that lead to immortality (as we know it so far): <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://oeis.org/A399179\">https://oeis.org/A399179</a></p>\n<p>Videos from Brady's chemistry trip to Australia (featuring wallabies, kangaroos, and koalas) - <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://www.youtube.com/playlist?list=PLD8C8561114777F5A\">https://www.youtube.com/playlist?list=PLD8C8561114777F5A</a></p>\n<p>Patreon: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"http://www.patreon.com/numberphile\">http://www.patreon.com/numberphile</a></p>\n<p>Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://bit.ly/numberphile-janestreet\">https://bit.ly/numberphile-janestreet</a></p>\n<p>We are also grateful for support from the Ben Delo Foundation - <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://delo.org/\">https://delo.org/</a></p>\n<p>NUMBERPHILE<br />\nWebsite: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"http://www.numberphile.com/\">http://www.numberphile.com/</a></p>\n<p>Video by Brady Haran &amp; Pete McPartlan</p>\n<p>Numberphile T-Shirts and Merch: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://teespring.com/stores/numberphile\">https://teespring.com/stores/numberphile</a></p>\n<p>Brady's videos subreddit: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"http://www.reddit.com/r/BradyHaran/\">http://www.reddit.com/r/BradyHaran/</a></p>\n<p>Brady's latest videos across all channels: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"http://www.bradyharanblog.com/\">http://www.bradyharanblog.com/</a></p>\n<p>Sign up for (occasional) emails: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"http://eepurl.com/YdjL9\">http://eepurl.com/YdjL9</a></p>\n",
  "content_markdown": "Neil Sloane shares the comma sequence. Then thoughts turn to immortal kangaroos leaping through minefields. More links & stuff in full description below ↓↓↓\n\nBONUS MATERIAL\\\nA digital curiosity associated with this video - https://www.patreon.com/numberphile/posts/168587472 (open access)\\\nBTS timelapse of this video being filmed (Patrons only) - https://www.patreon.com/numberphile/posts/168593344\n\nSee more Neil Sloane videos on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe\\_llzWmTHMPb9QvV2\n\nNeil is the founder of the On-Line Encyclopedia of Integer Sequences (OEIS): https://oeis.org/\n\nSome OEIS sequences related to this video...\\\nOriginal sequence when we start at 1 - https://oeis.org/A121805\\\nLandmines: https://oeis.org/A367341\\\nNumbers where there are two choices: https://oeis.org/A367346\\\nThe infinite path (strictly speaking, it is the lowest infinite path, because there could be more than one): https://oeis.org/A367620\\\nThe sequence of 0's and 1's that lead to immortality (as we know it so far): https://oeis.org/A399179\n\nVideos from Brady's chemistry trip to Australia (featuring wallabies, kangaroos, and koalas) - https://www.youtube.com/playlist?list=PLD8C8561114777F5A\n\nPatreon: http://www.patreon.com/numberphile\n\nNumberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet\n\nWe are also grateful for support from the Ben Delo Foundation - https://delo.org/\n\nNUMBERPHILE\\\nWebsite: http://www.numberphile.com/\n\nVideo by Brady Haran & Pete McPartlan\n\nNumberphile T-Shirts and Merch: https://teespring.com/stores/numberphile\n\nBrady's videos subreddit: http://www.reddit.com/r/BradyHaran/\n\nBrady's latest videos across all channels: http://www.bradyharanblog.com/\n\nSign up for (occasional) emails: http://eepurl.com/YdjL9\n",
  "dateCreated": "2026-09-08T10:17:10.166315+00:00",
  "date_created": "2026-09-04T13:06:35+00:00",
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  "summary": "Neil Sloane shares the comma sequence. Then thoughts turn to immortal kangaroos leaping through minefields. More links & stuff in full description below ↓↓↓\n\nBONUS MATERIAL\nA digital curiosity associated with this video - https://www.patreon.com/numberphile/posts/168587472 (open access)\nBTS timelapse of this video being filmed (Patrons only) - https://www.patreon.com/numberphile/posts/168593344\n\nSee more Neil Sloane videos on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe_llzWmTHMPb9QvV2\n\nNeil is the founder of the On-Line Encyclopedia of Integer Sequences (OEIS): https://oeis.org/\n\nSome OEIS sequences related to this video...\nOriginal sequence when we start at 1 - https://oeis.org/A121805\nLandmines: https://oeis.org/A367341\nNumbers where there are two choices: https://oeis.org/A367346\nThe infinite path (strictly speaking, it is the lowest infinite path, because there could be more than one): https://oeis.org/A367620\nThe sequence of 0's and 1's that lead to immortality (as we know it so far): https://oeis.org/A399179\n\nVideos from Brady's chemistry trip to Australia (featuring wallabies, kangaroos, and koalas) - https://www.youtube.com/playlist?list=PLD8C8561114777F5A\n\nPatreon: http://www.patreon.com/numberphile\n\nNumberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet\n\nWe are also grateful for support from the Ben Delo Foundation - https://delo.org/\n\nNUMBERPHILE\nWebsite: http://www.numberphile.com/\n\nVideo by Brady Haran & Pete McPartlan\n\nNumberphile T-Shirts and Merch: https://teespring.com/stores/numberphile\n\nBrady's videos subreddit: http://www.reddit.com/r/BradyHaran/\n\nBrady's latest videos across all channels: http://www.bradyharanblog.com/\n\nSign up for (occasional) emails: http://eepurl.com/YdjL9",
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  "title": "The Immortal Kangaroo Sequence - Numberphile",
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