Number of ways to partition n labeled elements into pie slices of different sizes allowing the pie to be turned over.
A032219
Number of ways to partition n labeled elements into pie slices of different sizes allowing the pie to be turned over.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =5a(5) =16a(6) =82a(7) =169a(8) =541a(9) =2272a(10) =43166a(11) =99859a(12) =479030a(13) =2089751a(14) =13714261a(15) =493866559a(16) =1397727901a(17) =7786145776a(18) =39662742502a(19) =252997758007
External references
- oeis: A032219