Number of n X n 0..1 arrays with every element equal to 0, 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
A299880
Number of n X n 0..1 arrays with every element equal to 0, 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =4a(2) =10a(3) =247a(4) =3127a(5) =223094a(6) =56762816a(7) =20496493815
External references
- oeis: A299880