Number of (n+1)X(n+1) arrays of permutations of 0..(n+1)^2-1 with each element having index change +-(.,.) 0,0 1,2 or 2,-2.
A264053
Number of (n+1)X(n+1) arrays of permutations of 0..(n+1)^2-1 with each element having index change +-(.,.) 0,0 1,2 or 2,-2.
Terms
- a(0) =1a(1) =8a(2) =324a(3) =32400a(4) =12960000a(5) =34260048000
External references
- oeis: A264053