Number of n X n binary matrices with no three 1's adjacent in a line horizontally, vertically, diagonally or antidiagonally.
A181218
Number of n X n binary matrices with no three 1's adjacent in a line horizontally, vertically, diagonally or antidiagonally.
Terms
- a(0) =2a(1) =16a(2) =230a(3) =10732a(4) =1495392a(5) =507962194a(6) =493466099722
External references
- oeis: A181218