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A136694
Final nonzero digit of n! in base 7.
15
1, 1, 2, 6, 3, 1, 6, 6, 6, 5, 1, 4, 6, 1, 2, 2, 4, 5, 6, 2, 5, 1, 1, 2, 6, 3, 1, 6, 3, 3, 6, 4, 2, 3, 4, 6, 6, 5, 1, 4, 6, 1, 6, 6, 5, 1, 4, 6, 1, 1, 1, 2, 6, 3, 1, 6, 6, 6, 5, 1, 4, 6, 1, 2, 2, 4, 5, 6, 2, 5, 1, 1, 2, 6, 3, 1, 6, 3, 3, 6, 4, 2, 3, 4, 6, 6, 5, 1, 4, 6, 1, 6, 6, 5, 1, 4, 6, 1, 2, 2
OFFSET
0,3
EXAMPLE
6! = 720 decimal = 2046 septimal, so a(6) = 6.
KEYWORD
base,easy,nonn
AUTHOR
Carl R. White, Jan 16 2008
STATUS
approved