Number of nX4 1..4 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in decreasing order.

A166847

Number of nX4 1..4 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in decreasing order.

Terms

    a(0) =1a(1) =84a(2) =1595a(3) =14610a(4) =89718a(5) =425640

External references