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  "articleBody": "Featuring Neil Sloane - more details below. Gear Train (episode sponsor) is at https://www.metmo.co.uk/collections/gear-train with discount code NUMBERPHILE10OFF -- More links & stuff in full description below ↓↓↓\n\nMore Neil Sloane videos at: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe\\_llzWmTHMPb9QvV2\n\nNeil Sloane is the founder of the OEIS: https://oeis.org/\n\nLollipop Numbers: https://oeis.org/A389624\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 and Pete McPartlan\\\nThanks also to Jonas Karlsson \\\nExtra checking by the Numberphile Society - special mention to Debbie and Felipe\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",
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  "content_html": "<p>Featuring Neil Sloane - more details below. Gear Train (episode sponsor) is at <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://www.metmo.co.uk/collections/gear-train\">https://www.metmo.co.uk/collections/gear-train</a> with discount code NUMBERPHILE10OFF -- More links &amp; stuff in full description below ↓↓↓</p>\n<p>More Neil Sloane videos at: <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 Sloane is the founder of the OEIS: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://oeis.org/\">https://oeis.org/</a></p>\n<p>Lollipop Numbers: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://oeis.org/A389624\">https://oeis.org/A389624</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 and Pete McPartlan<br />\nThanks also to Jonas Karlsson<br />\nExtra checking by the Numberphile Society - special mention to Debbie and Felipe</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",
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  "date_created": "2026-05-27T14:00:26+00:00",
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  "summary": "Featuring Neil Sloane - more details below. Gear Train (episode sponsor) is at https://www.metmo.co.uk/collections/gear-train with discount code NUMBERPHILE10OFF -- More links & stuff in full description below ↓↓↓\n\nMore Neil Sloane videos at: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe_llzWmTHMPb9QvV2\n\nNeil Sloane is the founder of the OEIS: https://oeis.org/\n\nLollipop Numbers: https://oeis.org/A389624\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 and Pete McPartlan\nThanks also to Jonas Karlsson \nExtra checking by the Numberphile Society - special mention to Debbie and Felipe \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 Unsolved Lollipop Problem - Numberphile",
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