264604776

Appears in sequences

• Number of (n+1) X (n+1) binary arrays with every 2 X 2 subblock trace equal to exactly one or two horizontal and vertical neighbor 2 X 2 subblock traces.at n=5A186931
• Number of (n+1)X7 binary arrays with every 2X2 subblock trace equal to exactly one or two horizontal and vertical neighbor 2X2 subblock traces.at n=5A186936