Number of (n+1)X(n+1) arrays of permutations of 0..(n+1)^2-1 filled by rows with each element moved a city block distance of 0 or 1.

A263512

Number of (n+1)X(n+1) arrays of permutations of 0..(n+1)^2-1 filled by rows with each element moved a city block distance of 0 or 1.

Terms

    a(0) =3a(1) =35a(2) =2076a(3) =489294a(4) =529329240

External references