

A365974


Expansion of e.g.f. exp( Sum_{k>=0} x^(5*k+3) / (5*k+3) ).


3



1, 0, 0, 2, 0, 0, 40, 0, 5040, 2240, 0, 1663200, 246400, 479001600, 605404800, 44844800, 699941088000, 274450176000, 355699625881600, 836634972096000, 156436600320000, 1437392253237248000, 1021561084051200000, 1124111547465274368000
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OFFSET

0,4


LINKS



FORMULA

a(0) = 1; a(n) = (n1)! * Sum_{k=0..floor((n3)/5)} a(n5*k3)/(n5*k3)!.


PROG

(PARI) my(N=30, x='x+O('x^N)); Vec(serlaplace(exp(sum(k=0, N\5, x^(5*k+3)/(5*k+3)))))


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



