Number of (7+1)X(n+1) arrays of permutations of 0..n*8+7 with each element having directed index change -1,1 -1,2 1,0 or 0,-1.
A264556
Number of (7+1)X(n+1) arrays of permutations of 0..n*8+7 with each element having directed index change -1,1 -1,2 1,0 or 0,-1.
Terms
- a(0) =0a(1) =93a(2) =1204a(3) =23140a(4) =813473a(5) =25172836a(6) =591482528a(7) =15554895920a(8) =426023121887
External references
- oeis: A264556