Number of nX4 1..3 arrays containing at least one of each value, all equal values connected, and rows considered as a single number in nondecreasing order.

A166787

Number of nX4 1..3 arrays containing at least one of each value, all equal values connected, and rows considered as a single number in nondecreasing order.

Terms

    a(0) =18a(1) =330a(2) =2340a(3) =11261a(4) =42611a(5) =136460a(6) =385764a(7) =988439

External references