Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
A299873
Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =7a(2) =20a(3) =125a(4) =3068a(5) =54005a(6) =2714797a(7) =213883244a(8) =29310012663
External references
- oeis: A299873