Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,1 2,2 1,0 -1,2 -2,-1 or -1,-1.
A264419
Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,1 2,2 1,0 -1,2 -2,-1 or -1,-1.
Terms
- a(0) =0a(1) =37a(2) =499a(3) =7311a(4) =137584a(5) =2486429a(6) =40217261a(7) =681146169a(8) =11846231201a(9) =202674077729
External references
- oeis: A264419