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Search: id:A004997
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A004997 6^n/n!*product[ k=0..n-1 ](6*k + 7). +0
1
1, 42, 1638, 62244, 2334150, 86830380, 3212724060, 118411829640, 4351634739270, 159559940439900, 5839893820100340, 213421574152757880, 7789887456575662620, 284031281108989544760, 10346853811827476273400 (list; graph; listen)
OFFSET

0,2

FORMULA

A(x) = (1 - 36*x)^(-7/6).

a(n) ~ 6*Gamma(1/6)^-1*n^(1/6)*6^(2*n)*{1 + 7/72*n^-1 - ...}. - Joe Keane (jgk(AT)jgk.org), Nov 24 2001

CROSSREFS

Sequence in context: A067638 A155021 A000502 this_sequence A120815 A158727 A009986

Adjacent sequences: A004994 A004995 A004996 this_sequence A004998 A004999 A005000

KEYWORD

nonn

AUTHOR

Joe Keane (jgk(AT)jgk.org)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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