387479538domain: NAppears in sequencesDirichlet g.f.: Product_{k>=2} 1 / (1 - k^(-s))^(9^(k-1)).at n=9A344253Dirichlet g.f.: Product_{k>=2} (1 + k^(-s))^(9^(k-1)).at n=9A344298Expansion of Sum_{k>0} (k * x * (1 + (k * x)^k))^k.at n=8A360732