Sum of the orders of all permutations of [n] with distinct cycle lengths.
A382780
Sum of the orders of all permutations of [n] with distinct cycle lengths.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =12a(4) =48a(5) =360a(6) =2520a(7) =22680a(8) =221760a(9) =2298240a(10) =28425600a(11) =385862400a(12) =5269017600a(13) =80951270400
External references
- oeis: A382780