Number of n X n 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302522
Number of n X n 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =3a(2) =28a(3) =168a(4) =3683a(5) =182773a(6) =16130212a(7) =1916999716a(8) =305442540368
External references
- oeis: A302522