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 A350469 a(n) = hypergeom([1/2 - n/2, -n/2], [-n], -72). 1
 1, 1, 19, 37, 379, 1045, 7867, 26677, 168283, 648469, 3677563, 15350005, 81546139, 357846229, 1825676731, 8266908853, 41129090011, 189933449365, 930257069563, 4349059158133, 21093686410267, 99376751256661, 479063106641467, 2267844629261365, 10890980548807771 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Table of n, a(n) for n=0..24. FORMULA a(n) ~ (1 + sqrt(73))^(n+1) / (sqrt(73) * 2^(n+1)). - Vaclav Kotesovec, Feb 18 2024 MATHEMATICA Table[HypergeometricPFQ[{1/2 - n/2, -n/2}, {-n}, -72], {n, 0, 30}] (* Vaclav Kotesovec, Feb 18 2024 *) CROSSREFS a(n) = A350470(9, n). Sequence in context: A136063 A242979 A244931 * A111441 A144594 A287310 Adjacent sequences: A350466 A350467 A350468 * A350470 A350471 A350472 KEYWORD nonn,changed AUTHOR Peter Luschny, Mar 19 2022 STATUS approved

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Last modified February 23 23:47 EST 2024. Contains 370288 sequences. (Running on oeis4.)