Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having index change +-(.,.) 0,0 0,2 or 2,1.

A264197

Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having index change +-(.,.) 0,0 0,2 or 2,1.

Terms

    a(0) =4a(1) =81a(2) =2025a(3) =20736a(4) =262144a(5) =3748096a(6) =54479161a(7) =741200625a(8) =10251562500a(9) =143054150625

External references