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A136702 Final nonzero digit of n! in base 16. 15
1, 1, 2, 6, 8, 8, 13, 11, 8, 8, 15, 5, 12, 12, 8, 8, 8, 8, 3, 9, 4, 4, 8, 8, 12, 12, 8, 8, 14, 6, 4, 12, 8, 8, 11, 1, 4, 4, 8, 8, 4, 4, 8, 8, 2, 10, 12, 4, 12, 12, 8, 8, 2, 10, 12, 4, 14, 14, 12, 4, 7, 11, 10, 6, 8, 8, 11, 1, 4, 4, 8, 8, 4, 4, 8, 8, 10, 2, 12, 4, 4, 4, 8, 8, 6, 14, 4, 12, 2, 2, 4, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..91.

EXAMPLE

6! = 720 decimal = 2D0 hexadecimal, so a(6) = 13.

PROG

(PARI) a(n) = {d = digits(n!, 16); k = #d; while (!d[k] && (k!=1), k--); d[k]; } \\ Michel Marcus, Sep 21 2016

CROSSREFS

Cf. A000142, A136690, A136691, A136692, A136693, A136694, A136695, A136696, A008904, A136697, A136698, A136699, A136700, A136701.

Sequence in context: A021376 A243311 A093888 * A064165 A003610 A201776

Adjacent sequences:  A136699 A136700 A136701 * A136703 A136704 A136705

KEYWORD

base,easy,nonn

AUTHOR

Carl R. White, Jan 16 2008

STATUS

approved

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Last modified September 20 16:14 EDT 2017. Contains 292276 sequences.