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 A091034 Fourth column (k=5) of array A090438 ((4,2)-Stirling2) divided by 24. 2
 1, 280, 70560, 19958400, 6659452800, 2644408166400, 1244905998336000, 689322235650048000, 444916954745303040000, 331767548149023866880000, 283424276847308960563200000, 275246422218908346286080000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 3,2 LINKS FORMULA a(n)=A090438(n, 5)/24, n>=3. a(n)=(n-1)*(n-2)*(2*n-3)*(2*n)!/(5!*(3!)^2), n>=3. E.g.f.:(sum(((-1)^(p+1))*binomial(5, p)*hypergeom([(p-1)/2, p/2], [], 4*x), p=2..5) + 4)/(5!*4!) (cf. A090438). CROSSREFS Cf. A091033 (third column of A090438), A091035 (fifth column). Sequence in context: A272715 A282439 A255498 * A294165 A259079 A296506 Adjacent sequences:  A091031 A091032 A091033 * A091035 A091036 A091037 KEYWORD nonn,easy AUTHOR Wolfdieter Lang, Jan 23 2004 STATUS approved

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Last modified January 22 14:02 EST 2020. Contains 331149 sequences. (Running on oeis4.)