Number of n X n 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318546
Number of n X n 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =3a(2) =5a(3) =64a(4) =842a(5) =14760a(6) =437825a(7) =21556643a(8) =1516492860a(9) =183780175203
External references
- oeis: A318546