Number of nX6 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 diagonally or antidiagonally.
A229378
Number of nX6 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 diagonally or antidiagonally.
Terms
- a(0) =448a(1) =8818a(2) =346598a(3) =11441370a(4) =407900408a(5) =13999334726a(6) =492938029980
External references
- oeis: A229378