Number of nX5 arrays of permutations of 5 copies of 0..n-1 with rows and columns nondecreasing.

A265002

Number of nX5 arrays of permutations of 5 copies of 0..n-1 with rows and columns nondecreasing.

Terms

    a(0) =1a(1) =3a(2) =21a(3) =261a(4) =4919a(5) =120096a(6) =3558888a(7) =123026475a(8) =4817478608a(9) =209081118730

External references