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,-1.
A264121
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,-1.
Terms
- a(0) =1a(1) =9a(2) =576a(3) =108045a(4) =79655625a(5) =317072810421
External references
- oeis: A264121