Number of n X n 0..1 arrays with every element unequal to 0, 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero.
A304842
Number of n X n 0..1 arrays with every element unequal to 0, 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =4a(2) =25a(3) =132a(4) =3009a(5) =67025a(6) =1500288a(7) =105482136a(8) =11448808957
External references
- oeis: A304842