Number of n X n 0..1 arrays with every element equal to 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302664
Number of n X n 0..1 arrays with every element equal to 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =3a(2) =43a(3) =934a(4) =42367a(5) =3640304a(6) =637088915a(7) =219692176894
External references
- oeis: A302664