1783137

Appears in sequences

• Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1000-1111 pattern in any orientation.at n=12A146595
• Number of n X 2 0..2 arrays x(i,j) with each element horizontally or vertically next to at least one element with value 2-x(i,j).at n=8A229841