Number of n X n 0..1 arrays with every element equal to 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.
A298127
Number of n X n 0..1 arrays with every element equal to 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =15a(4) =2621a(5) =285084a(6) =76791444a(7) =58599163176
External references
- oeis: A298127