-3535domain: ZAppears in sequencesExpansion of 1/(1 + 2*x - x^2 + x^3).at n=9A077986Expansion of f(-x) * f(-x^2)^4 / phi(x^2) in powers of x where phi(), f() are Ramanujan theta functions.at n=38A275372E.g.f.: 1/Product_{k>0} (1+x^k/k!)^k.at n=7A294494