Number of n X n 0..1 arrays with every element unequal to 0, 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
A306054
Number of n X n 0..1 arrays with every element unequal to 0, 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =4a(2) =27a(3) =164a(4) =3572a(5) =99928a(6) =3363541a(7) =257823074a(8) =35799252324
External references
- oeis: A306054