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 A091032 Second column (k=3) of array A090438 ((4,2)-Stirling2) divided by 8. 2
 1, 60, 5040, 604800, 99792000, 21794572800, 6102480384000, 2134124568576000, 912338253066240000, 468333636574003200000, 284372184127734743040000, 201645730563302817792000000, 165147853331345007771648000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,2 LINKS FORMULA a(n)= A090438(n, 3)/8 = (n-1)*(2*n)!/4! E.g.f.: (-3*hypergeom([1/2, 1], [], 4*x) + hypergeom([1, 3/2], [], 4*x) + 2)/(8*3!) (cf. A090438). CROSSREFS Cf. A002674 (first column of A090438), A091033 (third column). Sequence in context: A074076 A084274 A289307 * A328951 A178785 A091753 Adjacent sequences:  A091029 A091030 A091031 * A091033 A091034 A091035 KEYWORD nonn,easy AUTHOR Wolfdieter Lang, Jan 23 2004 STATUS approved

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Last modified April 7 10:46 EDT 2020. Contains 333301 sequences. (Running on oeis4.)