68669145088domain: NAppears in sequencesProduct_{n>=1} 1 / (1 - x^n)^(a(n)/n!) = 1 + sin(x).at n=15A354055Product_{n>=1} 1 / (1 - x^(2*n))^(a(n)/(2*n)!) = cos(x).at n=7A354063Product_{n>=1} 1 / (1 - x^(2*n))^(a(n)/(2*n)!) = cosh(x).at n=7A354064