79997893domain: NPropertiesPrimalityPrimeyesAppears in sequencesThe value of C in y = x^2+15x+C such that y is prime for all x = 0 to 8.at n=14A097460a(n) = n! * Sum_{k=1..n} ( Sum_{d|k} (-1)^(k/d+1) * d^2 )/(k * (n-k)!).at n=9A354508Prime numbersat n=4669274