Number of n X n 0..1 arrays with every element equal to 0, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302454
Number of n X n 0..1 arrays with every element equal to 0, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =2a(2) =18a(3) =10a(4) =924a(5) =5266a(6) =404761a(7) =26036557a(8) =4110999261
External references
- oeis: A302454