Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
A300308
Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =7a(2) =20a(3) =211a(4) =15171a(5) =1676663a(6) =543024998a(7) =558233828840
External references
- oeis: A300308