Number of n X n 0..1 arrays with every element equal to 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
A299931
Number of n X n 0..1 arrays with every element equal to 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =4a(2) =130a(3) =11212a(4) =3441754a(5) =3664429516
External references
- oeis: A299931