Number of n X n 0..1 arrays with every element unequal to 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
A305686
Number of n X n 0..1 arrays with every element unequal to 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =7a(2) =152a(3) =16658a(4) =6433903a(5) =9226209199
External references
- oeis: A305686