14136113domain: NPropertiesPrimalityPrimeyesAppears in sequencesLet f(n,x) = 1 + 4x + 6x^2 + 8x^3 + 9x^4 + ... + composite(n)*x^n; a(n)= smallest prime f(n,x), or 0 if no such prime exists.at n=17A088124Prime numbersat n=918364