Number of permutations of n distinct letters (ABCD...) each of which appears 4 times with one fixed point.
A124073
Number of permutations of n distinct letters (ABCD...) each of which appears 4 times with one fixed point.
Terms
- a(0) =0a(1) =0a(2) =1824a(3) =3662976a(4) =18743463360
External references
- oeis: A124073