Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no equal horizontal or antidiagonal neighbors and new values introduced sequentially from 0.

A265191

Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no equal horizontal or antidiagonal neighbors and new values introduced sequentially from 0.

Terms

    a(0) =0a(1) =1a(2) =42a(3) =20592a(4) =20957398a(5) =38833756515

External references