Number of (n+1) X 3 0..3 arrays with equal numbers of 2 X 2 subblocks with sum over 6 and with sum under 6.

A183751

Number of (n+1) X 3 0..3 arrays with equal numbers of 2 X 2 subblocks with sum over 6 and with sum under 6.

Terms

    a(0) =888a(1) =35524a(2) =1739668a(3) =104016508a(4) =5856201636a(5) =341710892328

External references