444447937domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1's.at n=6A295207Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1s.at n=6A295212Prime numbersat n=23574288