88972domain: NAppears in sequencesG.f.: A(x) = Product_{n>=0} (1+a(n)*x^(n+1))^2 = Sum_{n>=0} a(n)*x^n.at n=9A093635Sum of squares of four consecutive primes.at n=33A133524Expansion of Product_{k>=0} (1 + x^(4*k+1))^(4*k+1).at n=50A285288