255613domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form (4*k + 1)^2 + (4*k + 2)^2 where k=0,1,2,3,...at n=23A087871Primes p = a^2 + b^2 such that (x - a)^2 + (y - b)^2 = 2 and q - p = 4, where q = x^2 + y^2 is prime, assuming that a > b > 0 and x > y > 0.at n=12A217674Prime numbersat n=22491