863917domain: NPropertiesPrimalityPrimeyesAppears in sequencesHypotenuses of primitive Pythagorean triples in A195532 and A195533.at n=7A195534Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=12A303193Prime numbersat n=68633