59697domain: NAppears in sequencesOrdered factorizations with one level of parentheses indexed by prime signatures. A050354(A025487).at n=36A050355a(0)=1, a(1)=1, a(n) = 9*a(n/2) for even n >= 2, and a(n) = 8*a((n-1)/2) + a((n+1)/2) for odd n >= 3.at n=36A116526a(n) = n^5 + n^3 - n^2.at n=9A133072