Number of slanted 6Xn (i=1..6)X(j=i..n+i-1) 1..4 arrays with all 1s connected, all 2s connected, all 3s connected, all 4s connected, 1 in the upper left corner, 2 in the upper right corner, 3 in the lower left corner, and 4 in the lower right corner.

A165389

Number of slanted 6Xn (i=1..6)X(j=i..n+i-1) 1..4 arrays with all 1s connected, all 2s connected, all 3s connected, all 4s connected, 1 in the upper left corner, 2 in the upper right corner, 3 in the lower left corner, and 4 in the lower right corner.

Terms

    a(0) =9a(1) =232a(2) =11449a(3) =272548a(4) =5386897a(5) =92769304a(6) =1484483677a(7) =22335647312a(8) =319719142737

External references