Number of n X n 0..1 arrays with every element equal to 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.
A299548
Number of n X n 0..1 arrays with every element equal to 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =1a(2) =9a(3) =220a(4) =37283a(5) =19604624a(6) =40708113490
External references
- oeis: A299548