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 A233285 a(n) = largest m such that m! divides n-th Fibonacci number; a(n) = A055881(A000045(n)). 9
 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 4, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 4, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 4, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 4, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 6, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 4, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 4, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 4, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 4, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 7 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS The lengths of palindromic prefixes begin as: 1, 2, 5, 8, 11, 23, 35, 47, 59, 119, 239, 359, 479, 959, 1439, 1919, ... +1 results: 2, 3, 6, 9, 12, 24, 36, 48, 60, 120, 240, 360, 480, 960, 1440, 1920, ... LINKS Antti Karttunen, Table of n, a(n) for n = 1..12600 CROSSREFS Differs from A233284 for the first time at n=120, where a(120)=7, while A233284(120)=12. Cf. A055881, A000045, A001175-A001177, A233283, A233281. Sequence in context: A161045 A029322 A152828 * A233284 A112195 A103956 Adjacent sequences:  A233282 A233283 A233284 * A233286 A233287 A233288 KEYWORD nonn AUTHOR Antti Karttunen, Dec 06 2013 STATUS approved

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Last modified September 20 10:17 EDT 2021. Contains 347584 sequences. (Running on oeis4.)