Number of distinct classes of permutations of length n under reversal, rotation and complement to n+1.
A089066
Number of distinct classes of permutations of length n under reversal, rotation and complement to n+1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =8a(5) =38a(6) =192a(7) =1320a(8) =10176a(9) =91296a(10) =908160a(11) =9985920a(12) =119761920a(13) =1556847360a(14) =21794734080a(15) =326920043520
External references
- oeis: A089066