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

A264185

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

Terms

    a(0) =8a(1) =81a(2) =720a(3) =7056a(4) =70560a(5) =705600a(6) =7056000a(7) =70560000a(8) =705600000a(9) =7056000000a(10) =70560000000a(11) =705600000000

External references