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 A234846 Decimal expansion of sum(n>=0, (2n)!/(n!)^3 ) = sum(n>=0, C(2n,n)/n! ). 1
 1, 6, 8, 4, 3, 9, 8, 3, 6, 8, 1, 2, 5, 8, 9, 8, 8, 0, 6, 7, 4, 0, 5, 2, 7, 5, 9, 9, 0, 5, 6, 0, 2, 5, 6, 0, 2, 0, 3, 9, 2, 7, 4, 0, 4, 0, 0, 7, 2, 8, 6, 8, 8, 5, 8, 7, 0, 6, 1, 3, 2, 1, 6, 8, 1, 7, 3, 1, 7, 5, 4, 5, 5 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 2,2 LINKS FORMULA Equals e^2 * BesselI(0,2) = e^2 * sum(n>=0, 1/n!^2 ). EXAMPLE 16.843983681258... Equals 1/1 + 2/1 + 24/8 + 720/216 + 40320/13824 + 3628800/1728000 + ... PROG (PARI) exp(2)*besseli(0, 2) \\ Charles R Greathouse IV, Feb 19 2014 CROSSREFS Cf. A070910. Sequence in context: A272488 A100608 A321075 * A244054 A195701 A247038 Adjacent sequences:  A234843 A234844 A234845 * A234847 A234848 A234849 KEYWORD nonn,cons AUTHOR Richard R. Forberg, Dec 31 2013 STATUS approved

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Last modified October 23 12:19 EDT 2019. Contains 328345 sequences. (Running on oeis4.)