Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1's.
A295207
Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1's.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =147a(4) =9536a(5) =1245294a(6) =444447937a(7) =436106162865
External references
- oeis: A295207