A035279 - OEIS

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A035279

One tenth of deca-factorial numbers.

1, 20, 600, 24000, 1200000, 72000000, 5040000000, 403200000000, 36288000000000, 3628800000000000, 399168000000000000, 47900160000000000000, 6227020800000000000000, 871782912000000000000000 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`E.g.f. is G.f. for A011557(n-1) (powers of ten).`
	LINKS	`Index entries for sequences related to factorial numbers`
	FORMULA	`10a(n) = (10n)(!^10) := product(10j, j=1..n)= 10^nn!; E.g.f. (-1+(1-10*x)^(-1))/10.`
	MAPLE	`with(combstruct):A:=[N, {N=Cycle(Union(Z$10))}, labeled]: seq(count(A, size=n)/100, n=2..15); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 26 2008`
	CROSSREFS	`Cf. A011557, A045757.` `Sequence in context: A184123 A027407 A116218 * A015268 A202577 A059420` `Adjacent sequences: A035276 A035277 A035278 * A035280 A035281 A035282`
	KEYWORD	`easy,nonn`
	AUTHOR	`Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de)`

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Last modified February 15 08:12 EST 2012. Contains 205724 sequences.