Half the number of (n+1)X6 binary arrays with no 2X2 subblock containing exactly one 1.

A184193

Half the number of (n+1)X6 binary arrays with no 2X2 subblock containing exactly one 1.

Terms

    a(0) =602a(1) =16581a(2) =425802a(3) =11226643a(4) =294738261a(5) =7751834608a(6) =203828058160

External references