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

A264055

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

Terms

    a(0) =4a(1) =64a(2) =324a(3) =2025a(4) =15625a(5) =102400a(6) =692224a(7) =4826809a(8) =32867289a(9) =224820036a(10) =1544804416a(11) =10578122500a(12) =72482100625a(13) =496981290961

External references