6814820

Appears in sequences

• Number of n X n binary arrays without the pattern 1 0 0 1 diagonally, vertically, antidiagonally or horizontally.at n=4A189335
• Number of nX5 binary arrays without the pattern 1 0 0 1 diagonally, vertically, antidiagonally or horizontally.at n=4A189339
• T(n,k)=Number of nXk binary arrays without the pattern 1 0 0 1 diagonally, vertically, antidiagonally or horizontally.at n=40A189343