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A138258 Smallest positive integer m such that n divides [5^m/m] (=A129795(m)). 8
1, 2, 2, 2, 1, 2, 6, 7, 7, 7, 22, 2, 4, 6, 7, 13, 16, 7, 10, 7, 6, 31, 55, 7, 5, 4, 19, 6, 15, 7, 6, 17, 31, 16, 13, 7, 36, 10, 4, 7, 3, 6, 42, 31, 7, 55, 51, 13, 43, 26, 16, 4, 52, 19, 31, 13, 18, 15, 27, 7, 31, 6, 13, 17, 17, 31, 9, 16, 67, 13, 11, 7, 66, 36, 26, 18, 31, 4, 9, 13, 56, 61 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

This sequence is well-defined.

LINKS

Table of n, a(n) for n=1..82.

Romanian Master in Mathematics Contest, Bucharest, 2007, Problem 3

CROSSREFS

Cf. A129795, A138255, A138256, A138257, A138259, A138260, A138261, A138262, A138263.

Sequence in context: A198199 A124369 A205013 * A205599 A265671 A214707

Adjacent sequences:  A138255 A138256 A138257 * A138259 A138260 A138261

KEYWORD

nonn

AUTHOR

Max Alekseyev, Mar 09 2008.

STATUS

approved

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Last modified February 24 12:46 EST 2018. Contains 299623 sequences. (Running on oeis4.)