Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change -1,-1 1,0 -1,-2 -2,-2 or 0,1.
A264681
Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change -1,-1 1,0 -1,-2 -2,-2 or 0,1.
Terms
- a(0) =0a(1) =108a(2) =2417a(3) =43131a(4) =1449467a(5) =43095017a(6) =1095840260a(7) =28215481268a(8) =738782370243
External references
- oeis: A264681