2421136

Appears in sequences

• Number of 8Xn binary arrays without the pattern 0 1 diagonally or antidiagonally.at n=9A188830
• Number of nX6 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 0 0 vertically.at n=7A207750