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.

A186936

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.

Terms

    a(0) =1000a(1) =27272a(2) =241320a(3) =2504264a(4) =25314744a(5) =264604776a(6) =2731872328a(7) =28477050608a(8) =295182600552

External references