Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 3 neighboring 1's.
A296389
Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 3 neighboring 1's.
Terms
- a(0) =1a(1) =6a(2) =36a(3) =597a(4) =21769a(5) =1740403a(6) =313843472a(7) =124433749976
External references
- oeis: A296389