Number of (5+1)X(n+1) arrays of permutations of 0..n*6+5 with each element having index change +-(.,.) 0,0 1,2 or 2,2.

A264020

Number of (5+1)X(n+1) arrays of permutations of 0..n*6+5 with each element having index change +-(.,.) 0,0 1,2 or 2,2.

Terms

    a(0) =1a(1) =89a(2) =7921a(3) =269225a(4) =9150625a(5) =398967250a(6) =17394972100a(7) =744568640640

External references