49306domain: NAppears in sequencesExpansion of Product_{k >= 0} (1 + A147954(k)*x^k).at n=36A147955Expansion of Product_{k>=1} (1 - x^(18*k)) * (1 - x^(18*k-9)) * (1 + x^k) / (1 - x^k).at n=27A280947