Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
A299181
Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =7a(2) =20a(3) =75a(4) =626a(5) =3773a(6) =59287a(7) =1666826a(8) =51863841a(9) =3412264531
External references
- oeis: A299181