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A091035
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Fifth column (k=6) of array A090438 ((4,2)-Stirling2).
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2
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1, 840, 352800, 139708800, 59935075200, 29088489830400, 16183777978368000, 10339833534750720000, 7563588230670151680000, 6303583414831453470720000, 5951909813793488171827200000, 6330667711034891964579840000000
(list; graph; refs; listen; history; internal format)
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OFFSET
| 3,2
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FORMULA
| a(n)=A090438(n, 6), n>=3.
a(n)=binomial(2*n-2, 4)*(2*n)!/6!= A053134(n-3)*(2*n)!/6!, n>=3.
E.g.f.:(sum(((-1)^p)*binomial(6, p)*hypergeom([(p-1)/2, p/2], [], 4*x), p=2..6) - 5)/6! (cf. A090438).
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CROSSREFS
| Cf. A091034 (fourth column of A090438 divided by 24), A091036 (sixth column divided by 48).
Sequence in context: A022052 A055353 A107516 * A181203 A091036 A091038
Adjacent sequences: A091032 A091033 A091034 * A091036 A091037 A091038
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KEYWORD
| nonn,easy
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AUTHOR
| Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Jan 23 2004
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