Number of (n+1)X(n+1) binary arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace.

A185741

Number of (n+1)X(n+1) binary arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace.

Terms

    a(0) =0a(1) =104a(2) =4056a(3) =458320a(4) =145680504a(5) =130602553784

External references