277791domain: NAppears in sequencesNumbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 17.at n=33A031695a(n) = 289n^2 + 2n.at n=30A158254G.f. is the polynomial (Product_{k=1..30} (1 - x^(3*k)))/(1-x)^30.at n=5A162736G.f. satisfies A(x) = 1/(1-x)^3 + x^2*A(x)^3.at n=10A364626