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 A362656 E.g.f. satisfies A(x) = exp( x * exp(x) * A(x)^3 ). 2
 1, 1, 9, 145, 3569, 119041, 5025145, 256991953, 15448193633, 1067634195841, 83414064659561, 7270683884044945, 699503964027087697, 73631519384051331457, 8417768844410686595801, 1038658083084399115865041, 137579671405398060549801665 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Table of n, a(n) for n=0..16. Eric Weisstein's World of Mathematics, Lambert W-Function. FORMULA E.g.f.: exp( -LambertW(-3*x * exp(x))/3 ). a(n) = Sum_{k=0..n} k^(n-k) * (3*k+1)^(k-1) * binomial(n,k). PROG (PARI) my(N=20, x='x+O('x^N)); Vec(serlaplace(exp(-lambertw(-3*x*exp(x))/3))) CROSSREFS Cf. A273954, A360473, A362671, A362672. Cf. A052752. Sequence in context: A331329 A064091 A132060 * A320333 A178185 A244822 Adjacent sequences: A362653 A362654 A362655 * A362657 A362658 A362659 KEYWORD nonn AUTHOR Seiichi Manyama, Apr 28 2023 STATUS approved

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Last modified April 21 11:18 EDT 2024. Contains 371853 sequences. (Running on oeis4.)