Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 2 neighboring 1's.
A296379
Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 2 neighboring 1's.
Terms
- a(0) =1a(1) =10a(2) =127a(3) =5389a(4) =684894a(5) =229596763a(6) =221204933878
External references
- oeis: A296379