102141domain: NAppears in sequencesa(n) = Sum_{k=0..floor(n/2)} T(n-k,k), T given by A026758.at n=22A026768Expansion of Product_{k>=2} 1/(1 - x^k)^bigomega(k), where bigomega(k) is the number of prime divisors of k counted with multiplicity (A001222).at n=43A293549