Number of (n+1) X (4+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 1,2 or 2,2.

A264014

Number of (n+1) X (4+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 1,2 or 2,2.

Terms

    a(0) =8a(1) =105a(2) =1573a(3) =20570a(4) =269225a(5) =3524125a(6) =46131250a(7) =603865625a(8) =7904703125a(9) =103473906250

External references