Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
A300031
Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =5a(2) =22a(3) =427a(4) =21811a(5) =3126013a(6) =1240303182
External references
- oeis: A300031