Number of n X n 0..1 arrays with every element unequal to 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero.
A304051
Number of n X n 0..1 arrays with every element unequal to 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =3a(2) =6a(3) =26a(4) =596a(5) =3434a(6) =77360a(7) =4890117a(8) =181435839a(9) =30401698932
External references
- oeis: A304051