Number of n X n 0..1 arrays with every element unequal to 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
A305090
Number of n X n 0..1 arrays with every element unequal to 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =3a(2) =14a(3) =20a(4) =333a(5) =7273a(6) =23368a(7) =566292a(8) =64803044a(9) =910350286a(10) =37491702178
External references
- oeis: A305090