297779domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes prime(k) such that prime(k)^2 + prime(k+1)^2 - 1 is a perfect square.at n=9A160054Primes prime(k) such that prime(k)^2 + prime(k+1)^2 - 1 is the square of a prime.at n=7A359414Prime numbersat n=25828