Number of n X n binary arrays with top left value 1 and no two ones adjacent horizontally, vertically or nw-se diagonally.
A228277
Number of n X n binary arrays with top left value 1 and no two ones adjacent horizontally, vertically or nw-se diagonally.
Terms
- a(0) =1a(1) =1a(2) =13a(3) =133a(4) =3631a(5) =172082a(6) =16566199a(7) =3057290265
External references
- oeis: A228277