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A051604 (3*n+4)!!!/4!!!, related to A007559(n+1) ((3*n+1)!!! triple factorials). 6
1, 7, 70, 910, 14560, 276640, 6086080, 152152000, 4260256000, 132067936000, 4490309824000, 166141463488000, 6645658539520000, 285763317199360000, 13145112591170560000, 644110516967357440000, 33493746882302586880000 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Row m=4 of the array A(4; m,n) := ((3*n+m)(!^3))/m(!^3), m >= 0, n >= 0.

FORMULA

a(n) = ((3*n+4)(!^3))/4(!^3); e.g.f.: 1/(1-3*x)^(7/3).

CROSSREFS

Cf. A032031, A007559(n+1), A034000(n+1), A034001(n+1). (rows m=0..3).

Sequence in context: A124566 A141151 A001669 * A097630 A090647 A200929

Adjacent sequences:  A051601 A051602 A051603 * A051605 A051606 A051607

KEYWORD

easy,nonn

AUTHOR

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

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Last modified February 15 17:13 EST 2012. Contains 205828 sequences.