Number of nXn 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
A317699
Number of nXn 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =4a(2) =25a(3) =1719a(4) =468002a(5) =508895558
External references
- oeis: A317699