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A305990
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E.g.f.: (1+x) / (exp(-x) - x).
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8
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1, 3, 11, 58, 409, 3606, 38149, 470856, 6641793, 105398650, 1858413061, 36044759796, 762659322385, 17481598316742, 431535346662645, 11413394655983536, 321989729198400385, 9651573930139850610, 306321759739045148293, 10262156907184058219340
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OFFSET
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0,2
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LINKS
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Table of n, a(n) for n=0..19.
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FORMULA
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a(n) ~ n! / LambertW(1)^(n+1).
a(n) = (-1)^n * A009444(n+1).
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MATHEMATICA
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nmax = 20; CoefficientList[Series[(1+x)/(E^(-x)-x), {x, 0, nmax}], x] * Range[0, nmax]!
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CROSSREFS
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Cf. A305133, A006153, A009306, A009444, A072597, A089148, A302397.
Sequence in context: A020012 A126100 A009444 * A168325 A141776 A071698
Adjacent sequences: A305987 A305988 A305989 * A305991 A305992 A305993
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KEYWORD
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nonn
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AUTHOR
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Vaclav Kotesovec, Jun 16 2018
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STATUS
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approved
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