Number of ways to partition n labeled elements into pie slices allowing the pie to be turned over.
A032262
Number of ways to partition n labeled elements into pie slices allowing the pie to be turned over.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =17a(5) =83a(6) =557a(7) =4715a(8) =47357a(9) =545963a(10) =7087517a(11) =102248075a(12) =1622633597a(13) =28091569643a(14) =526858352477
External references
- oeis: A032262