Number of 3Xn arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 5.

A264661

Number of 3Xn arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 5.

Terms

    a(0) =1a(1) =8a(2) =314a(3) =20940a(4) =3084352a(5) =726042624a(6) =284038382592

External references