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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
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
Sequence in context: A021376 A243311 A093888 * A328910 A064165 A320573
KEYWORD
base,easy,nonn
AUTHOR
Carl R. White, Jan 16 2008
STATUS
approved

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Last modified August 29 09:16 EDT 2024. Contains 375511 sequences. (Running on oeis4.)