a(n) is the number of permutations in the symmetric group S_n that contain an odd cycle.
A087137
a(n) is the number of permutations in the symmetric group S_n that contain an odd cycle.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =6a(4) =15a(5) =120a(6) =495a(7) =5040a(8) =29295a(9) =362880a(10) =2735775a(11) =39916800a(12) =370945575a(13) =6227020800a(14) =68916822975
External references
- oeis: A087137