Number of nXn 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
A316642
Number of nXn 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =3a(2) =15a(3) =42a(4) =3988a(5) =43604a(6) =1396674a(7) =331807728a(8) =22368384180
External references
- oeis: A316642