OFFSET
0,7
EXAMPLE
G.f. A(x) = 1 - x + x^2 - x^3 + x^4 - 3*x^6 + 10*x^7 - 26*x^8 + 60*x^9 - 127*x^10 + ...
CROSSREFS
KEYWORD
sign
AUTHOR
Ilya Gutkovskiy, Mar 20 2018
STATUS
approved