Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 3.

A264559

Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 3.

Terms

    a(0) =2a(1) =24a(2) =888a(3) =58368a(4) =7019136a(5) =1202698368

External references