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Search: id:A035278
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A035278 One ninth of deca-factorial numbers. +0
3
1, 19, 551, 21489, 1052961, 62124699, 4286604231, 338641734249, 30139114348161, 2983772320467939, 325231182931005351, 38702510768789636769, 4992623889173863143201, 693974720595166976904939 (list; graph; listen)
OFFSET

1,2

COMMENT

a(n)= (Pochhammer(9/10,n)*10^n)/9.

LINKS

Index entries for sequences related to factorial numbers

FORMULA

9*a(n) = (10*n-1)(!^10) := product(10*j-1, j=1..n); E.g.f. (-1+(1-10*x)^(-9/10))/9.

CROSSREFS

Cf. A045757, A035265, A035272-A035279.

Adjacent sequences: A035275 A035276 A035277 this_sequence A035279 A035280 A035281

Sequence in context: A057644 A027406 A053116 this_sequence A092611 A008990 A012845

KEYWORD

easy,nonn

AUTHOR

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de)

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.


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