Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
A299887
Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =5a(2) =31a(3) =1308a(4) =135586a(5) =55414033a(6) =85265831295
External references
- oeis: A299887