Number of permutations of n distinct letters (ABCD...) each of which appears thrice with one fixed point.
A124009
Number of permutations of n distinct letters (ABCD...) each of which appears thrice with one fixed point.
Terms
- a(0) =0a(1) =0a(2) =216a(3) =49464a(4) =23123880a(5) =19180338840
External references
- oeis: A124009