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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: A345674 A296337 A308432 * 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 27 03:13 EDT 2022. Contains 354093 sequences. (Running on oeis4.)