Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having directed index change -1,0 0,2 -1,-2 or 1,0.
A264518
Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having directed index change -1,0 0,2 -1,-2 or 1,0.
Terms
- a(0) =6a(1) =8a(2) =644a(3) =8018a(4) =169195a(5) =2856816a(6) =50099452a(7) =868998834a(8) =14882827790a(9) =256959272592
External references
- oeis: A264518