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 A153028 Special values of the hypergeometric function of the type 4F0. 1
 1, 1, 1, 1, 7, 31, 361, 3361, 57121, 873937, 20110861, 446072221, 13230551071, 394398451591, 14556740314117, 554429787469741, 24799106347186081 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 LINKS FORMULA In Maple notation, a(n)=hypergeom([ -n/2,1/2-n/2,1-n/2,3/2-n/2],[],4), n=0,1... . a(n) ~ 2^(-n/2 - 5/8) * exp(2^(5/4) * n^(1/4) - 3*n/2) * n^(3*n/2 - 9/8) * (1 - 15/(16*2^(1/4)*n^(1/4)) - 151/(512*sqrt(2*n)) + 4155/(8192*2^(3/4)*n^(3/4))). - Vaclav Kotesovec, Jul 05 2018 MATHEMATICA Table[HypergeometricPFQ[{-n/2, 1/2-n/2, 1-n/2, 3/2-n/2}, {}, 4], {n, 0, 20}] (* Vaclav Kotesovec, Jul 05 2018 *) CROSSREFS Sequence in context: A143564 A253596 A298958 * A276667 A322894 A232993 Adjacent sequences:  A153025 A153026 A153027 * A153029 A153030 A153031 KEYWORD nonn AUTHOR Karol A. Penson, Dec 17 2008 STATUS approved

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Last modified February 27 09:44 EST 2020. Contains 332301 sequences. (Running on oeis4.)