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A362164
Expansion of e.g.f. -exp(x * (1-3*x)^(1/3)).
3
-1, -1, 1, 11, 63, 499, 6089, 97551, 1875551, 41846183, 1062206289, 30214274419, 951599063711, 32864817109851, 1234766859596633, 50132215859126519, 2187063341006059839, 102022039514031274831, 5067161180856909388961, 266960634868753685833563
OFFSET
0,4
FORMULA
a(n) = - n! * Sum_{k=0..n} (-3)^k * binomial((n-k)/3,k)/(n-k)!.
PROG
(PARI) my(N=20, x='x+O('x^N)); Vec(serlaplace(-exp(x*(1-3*x)^(1/3))))
CROSSREFS
Sequence in context: A053367 A163706 A180763 * A357959 A285361 A237358
KEYWORD
sign,easy
AUTHOR
Seiichi Manyama, Apr 10 2023
STATUS
approved