OFFSET
0,4
MATHEMATICA
nmax = 27; CoefficientList[Series[1/(1 + x + ContinuedFractionK[x^2, 1 + (k + 1) x, {k, 1, nmax}]), {x, 0, nmax}], x]
CROSSREFS
KEYWORD
sign
AUTHOR
Ilya Gutkovskiy, Nov 19 2017
STATUS
approved