Number of (n+1)X(n+1) arrays of permutations of 0..(n+1)^2-1 with each element having directed index change -1,1 1,0 1,-1 or 0,-1.
A264330
Number of (n+1)X(n+1) arrays of permutations of 0..(n+1)^2-1 with each element having directed index change -1,1 1,0 1,-1 or 0,-1.
Terms
- a(0) =0a(1) =2a(2) =11a(3) =240a(4) =15040a(5) =2464988a(6) =1082465413
External references
- oeis: A264330