272714953724domain: NAppears in sequencesNumber of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 3 1s.at n=6A295414Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 3 1s.at n=5A295415