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A331559 E.g.f.: -log(1 + x + log(1 - x)). 1
0, 1, 2, 9, 44, 280, 2064, 17738, 172528, 1880856, 22686960, 300193872, 4323063744, 67323469200, 1127433161568, 20205636981840, 385897245967104, 7824675262660608, 167885148101916672, 3800289634376282496, 90513807325761507840, 2262830879094971399424 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Logarithmic transform of A226226.
LINKS
FORMULA
a(n) ~ (n-1)! / (1 + LambertW(-exp(-2)))^n. - Vaclav Kotesovec, Jan 26 2020
MATHEMATICA
nmax = 22; CoefficientList[Series[-Log[1 + x + Log[1 - x]], {x, 0, nmax}], x] Range[0, nmax]! // Rest
CROSSREFS
Sequence in context: A308338 A196301 A347571 * A184932 A073478 A336400
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Jan 20 2020
STATUS
approved

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Last modified March 3 04:18 EST 2024. Contains 370499 sequences. (Running on oeis4.)