Number of n X n 0..1 arrays with every element unequal to 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
A305217
Number of n X n 0..1 arrays with every element unequal to 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =3a(2) =8a(3) =49a(4) =792a(5) =32193a(6) =1893682a(7) =246793217a(8) =75341044066
External references
- oeis: A305217