3344161domain: NPropertiesPrimalityPrimeyesAppears in sequencesThird sequence in solution to congruent number 5 problem.at n=4A129208Primes of the form x^2 + y^2 with x > y such that x^2 - y^2 is a square and x^4 + y^4 is a prime.at n=29A282867Prime numbersat n=239841