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A233284 a(n) = largest m such that 1, 2, ..., m divide n-th Fibonacci number; a(n) = A055874(A000045(n)). 5
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, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

It seems that the records occur at the positions given by A233283: 1, 3, 12, 60, 120, 840, 2520, 12600, ...

The corresponding record values begin as 1, 2, 4, 6, 12, 16, 24, 36, ... (maybe A007416?).

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..12600

CROSSREFS

Differs from A233285 for the first time at n=120, where a(120)=12, while A233285(120)=7.

Cf. A055874, A000045, A001175-A001177, A233283, A007416.

Sequence in context: A029322 A152828 A233285 * A112195 A103956 A103957

Adjacent sequences:  A233281 A233282 A233283 * A233285 A233286 A233287

KEYWORD

nonn

AUTHOR

Antti Karttunen, Dec 12 2013

STATUS

approved

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Last modified September 28 18:42 EDT 2021. Contains 347717 sequences. (Running on oeis4.)