Number of permutations of 5 copies of 1..n introduced in order 1..n with no element equal to another within a distance of 2.
A190834
Number of permutations of 5 copies of 1..n introduced in order 1..n with no element equal to another within a distance of 2.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =15743a(4) =312841383
External references
- oeis: A190834