225624domain: NAppears in sequencesExpansion of Product_{m>=1} (1 + m*q^m).at n=28A022629a(n)=T(2n,n+1), where T is given by A048113.at n=11A048120Numbers k that have no zero digits and such that both k+1 and (product of digits of k) + 1 are squares.at n=30A081990