219953domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmallest of three consecutive primes whose average is a square.at n=5A226149Values k(i) such that k(i) + k(i+3) = k(i+1) + k(i+2), where k(i) is A022885(i).at n=31A235725Prime numbersat n=19613