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A136692 Final nonzero digit of n! in base 5. 14
1, 1, 2, 1, 4, 4, 4, 3, 4, 1, 2, 2, 4, 2, 3, 4, 4, 3, 4, 1, 4, 4, 3, 4, 1, 1, 1, 2, 1, 4, 4, 4, 3, 4, 1, 2, 2, 4, 2, 3, 4, 4, 3, 4, 1, 4, 4, 3, 4, 1, 2, 2, 4, 2, 3, 3, 3, 1, 3, 2, 4, 4, 3, 4, 1, 3, 3, 1, 3, 2, 3, 3, 1, 3, 2, 1, 1, 2, 1, 4, 4, 4, 3, 4, 1, 2, 2, 4, 2, 3, 4, 4, 3, 4, 1, 4, 4, 3, 4, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..99.

EXAMPLE

6! = 720 decimal = 10340 quinary, so a(6) = 4.

MATHEMATICA

Table[Module[{sp=Split[IntegerDigits[n!, 5]]}, If[sp[[-1, -1]]==0, sp[[-2, -1]], sp[[-1, -1]]]], {n, 0, 100}] (* Harvey P. Dale, Oct 26 2016 *)

CROSSREFS

Cf. A000142, A136690, A136691, A136693, A136694, A136695, A136696, A008904, A136697, A136698, A136699, A136700, A136701, A136702.

Sequence in context: A111975 A117250 A296337 * A219194 A234306 A223012

Adjacent sequences:  A136689 A136690 A136691 * A136693 A136694 A136695

KEYWORD

base,easy,nonn

AUTHOR

Carl R. White, Jan 16 2008

STATUS

approved

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Last modified May 23 12:38 EDT 2019. Contains 323514 sequences. (Running on oeis4.)