Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 4 1's.
A295269
Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 4 1's.
Terms
- a(0) =2a(1) =11a(2) =164a(3) =6659a(4) =748740a(5) =230659662a(6) =196091375073
External references
- oeis: A295269