16064421domain: NAppears in sequencesNumber of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1s.at n=5A295250Number of n X 6 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1's.at n=4A295251