1/128 the number of (n+2) X 4 binary arrays with no 3 X 3 subblock trace equal to any horizontal or vertical neighbor 3 X 3 subblock trace.

A185859

1/128 the number of (n+2) X 4 binary arrays with no 3 X 3 subblock trace equal to any horizontal or vertical neighbor 3 X 3 subblock trace.

Terms

    a(0) =22a(1) =164a(2) =1254a(3) =9604a(4) =73542a(5) =563180a(6) =4312662a(7) =33025492a(8) =252901110a(9) =1936659260a(10) =14830481526a(11) =113568392452a(12) =869680280982

External references