OFFSET
0,2
COMMENTS
Convolution inverse of A000121.
MATHEMATICA
nmax = 54; CoefficientList[Series[Product[1/(1 + x^Fibonacci[k]), {k, 1, 21}], {x, 0, nmax}], x]
CROSSREFS
KEYWORD
sign
AUTHOR
Ilya Gutkovskiy, Sep 26 2022
STATUS
approved