176238

Appears in sequences

• Number of 3 X n grids of black and white cells, no 3 of same color vertically or horizontally contiguous.at n=8A060521
• Number of (n+2)X9 binary arrays avoiding patterns 000 and 111 in rows and columns.at n=0A203406
• T(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 000 and 111 in rows and columns.at n=21A203407
• T(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 000 and 111 in rows and columns.at n=27A203407