Number of (n+1) X (n+1) arrays of permutations of 0..(n+1)^2-1 with each element having directed index change -2,0 -1,0 0,-1 or 1,1.
A264621
Number of (n+1) X (n+1) arrays of permutations of 0..(n+1)^2-1 with each element having directed index change -2,0 -1,0 0,-1 or 1,1.
Terms
- a(0) =0a(1) =2a(2) =13a(3) =108a(4) =6107a(5) =604916a(6) =145801320a(7) =84594500932
External references
- oeis: A264621