3091201domain: NPropertiesPrimalityPrimeyesAppears in sequencesP_4(2n+1), the Legendre polynomial of order 4 at 2n+1.at n=14A144124Primes of the form P_4(n) where P_4(n) is the Legendre polynomial of order 4 at n.at n=4A144125Prime numbersat n=222917