Number of permutations of 9 copies of 1..n with no element equal to another within a distance of 1.
A322145
Number of permutations of 9 copies of 1..n with no element equal to another within a distance of 1.
Terms
- a(0) =1a(1) =0a(2) =2a(3) =17236524
External references
- oeis: A322145