OFFSET
0,2
MATHEMATICA
nmax = 23; CoefficientList[Series[Product[(1 - x^k/k!)^3, {k, 1, nmax}], {x, 0, nmax}], x] Range[0, nmax]!
CROSSREFS
KEYWORD
sign
AUTHOR
Ilya Gutkovskiy, Mar 27 2024
STATUS
approved