24229115109domain: NAppears in sequencesExpansion of (k(q) / 4)^4 in powers of q where k() is a Jacobi elliptic function.at n=16A225915a(n) = [x^n] Product_{k>=1} ((1 + x^(2*k))/(1 - x^(2*k-1)))^n.at n=16A296044