-7675domain: ZAppears in sequencesLet sum(k>=0, k^n/(2*k+1)!) = (x(n)*e + y(n)/e)/z(n), where x(n) and z(n) are >0, then a(n)=y(n).at n=12A080094Write 1 + sin x = Product_{n>=1} (1 + g_n * x^n); a(n) = numerator(g_n).at n=8A170914