A008905 - OEIS

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A008905

Leading digit of n!.

1, 1, 2, 6, 2, 1, 7, 5, 4, 3, 3, 3, 4, 6, 8, 1, 2, 3, 6, 1, 2, 5, 1, 2, 6, 1, 4, 1, 3, 8, 2, 8, 2, 8, 2, 1, 3, 1, 5, 2, 8, 3, 1, 6, 2, 1, 5, 2, 1, 6, 3, 1, 8, 4, 2, 1, 7, 4, 2, 1, 8, 5, 3, 1, 1, 8, 5, 3, 2, 1, 1, 8, 6, 4, 3, 2, 1, 1, 1, 8, 7, 5, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9, 1 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	LINKS	`T. D. Noe, Table of n, a(n) for n=0..1000` `Index entries for sequences related to factorial numbers`
	MATHEMATICA	`f[ n_ ] := Quotient[ n!, 10^Floor@ Log[ 10, n! ] ]; Array[ f, 105, 0 ]`
	CROSSREFS	`Cf. A000966, A000142.` `Cf. A018799. [From Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 05 2010]` `Sequence in context: A049061 A082516 A204935 * A136760 A062539 A171898` `Adjacent sequences: A008902 A008903 A008904 * A008906 A008907 A008908`
	KEYWORD	`nonn,base,easy`
	AUTHOR	`Russ Cox (rsc(AT)swtch.com)`
	EXTENSIONS	`I removed two less efficient Mathematica codings. - Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 05 2010`

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Last modified February 17 10:05 EST 2012. Contains 206009 sequences.