Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1, 2 or 4 neighboring 1's.
A296637
Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1, 2 or 4 neighboring 1's.
Terms
- a(0) =1a(1) =10a(2) =132a(3) =5696a(4) =742601a(5) =263456105a(6) =267838310277
External references
- oeis: A296637