Number of (n+1)X(n+1) arrays of permutations of 0..(n+1)^2-1 with each element having index change +-(.,.) 0,0 1,0 or 1,2.
A264265
Number of (n+1)X(n+1) arrays of permutations of 0..(n+1)^2-1 with each element having index change +-(.,.) 0,0 1,0 or 1,2.
Terms
- a(0) =4a(1) =48a(2) =3721a(3) =1143000a(4) =1608491236
External references
- oeis: A264265