179425domain: NAppears in sequencesExpansion of Product_{k>=1} (1 + x^(3*k-1))^(3*k-1) * (1 + x^(3*k-2))^(3*k-2).at n=31A262924Expansion of e.g.f. Product_{k>=1} 1 / (2 - exp(x^k)).at n=7A330198