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A362163
Expansion of e.g.f. -exp(x * sqrt(1-2*x)).
2
-1, -1, 1, 8, 23, 64, 479, 6026, 80863, 1194488, 19951919, 374005774, 7768598111, 177019006748, 4389955280983, 117700126685714, 3392361648663359, 104592876994535056, 3434908279968850463, 119702402510430502358, 4411764405014665620799
OFFSET
0,4
FORMULA
a(n) = - n! * Sum_{k=0..n} (-2)^k * binomial((n-k)/2,k)/(n-k)!.
PROG
(PARI) my(N=30, x='x+O('x^N)); Vec(serlaplace(-exp(x*sqrt(1-2*x))))
CROSSREFS
Sequence in context: A055273 A296323 A241353 * A059209 A099274 A208633
KEYWORD
sign,easy
AUTHOR
Seiichi Manyama, Apr 10 2023
STATUS
approved