13716864domain: NAppears in sequencesa(n) = n^2*6^n.at n=7A128785a(n) = Product_{p<=n, p prime} binomial(n,p).at n=9A334038a(n) = [x^n] Product_{k>=1} (1 + n^(k+1)*x^k).at n=6A344094a(n) is the number of monic polynomials of degree n over GF(7) without linear factors.at n=9A355510