Number of n X n 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
A317727
Number of n X n 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =7a(2) =161a(3) =19208a(4) =8931649a(5) =16360102553
External references
- oeis: A317727