Number of n X n 0..1 arrays with every element equal to 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.
A298049
Number of n X n 0..1 arrays with every element equal to 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =3a(2) =15a(3) =40a(4) =121a(5) =512a(6) =1708a(7) =7014a(8) =35804a(9) =201703a(10) =1158266a(11) =7391098a(12) =54852360
External references
- oeis: A298049