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A303673
a(n) = [x^n] (15! / Sum_{k=0..n} (k+15)!*x^k)^(1/8).
3
1, -2, -16, -204, -3264, -60384, -1239912, -27591408, -655324704, -16443029408, -432731364992, -11882079044992, -339084517212576, -10026995732141760, -306530743192692480, -9669854410016300160, -314315622535266332160
OFFSET
0,2
LINKS
MAPLE
[seq(coeff(series((factorial(15)/add(factorial(k+15)*x^k, k=0..n))^(1/8), x, 30), x, n), n=0..25)]; # Muniru A Asiru, Apr 29 2018
PROG
(PARI) N=66; x='x+O('x^N); Vec((15!/sum(k=0, N, (k+15)!*x^k))^(1/8))
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Apr 28 2018
STATUS
approved