Number of n X n 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.
A298331
Number of n X n 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =4a(2) =113a(3) =5663a(4) =755110a(5) =268494008a(6) =242019919082
External references
- oeis: A298331