58159domain: NAppears in sequencesa(n) = (2*n^3 + 5*n^2 - 17*n)/2.at n=37A162259a(n) = n^5 - n^3 - 2*n^2 + 1.at n=9A177075Semiprimes of the form n^5-n^3-2*n^2+1.at n=2A177087