-13924domain: ZAppears in sequencesa(n) = (-1)^(n-1)*n*(4n^2-5)^2.at n=3A165935Expansion of (psi(x^3) / psi(x))^2 in powers of x where psi() is a Ramanujan theta function.at n=31A217786G.f. satisfies: A( x*A(x) ) = x^2 + x^3.at n=16A274569Expansion of Product_{k>=0} (1-x^(4*k+1))^(4*k+1).at n=43A285070