Number of ways to partition n elements into pie slices of different sizes of at least 2 allowing the pie to be turned over.

A032230

Number of ways to partition n elements into pie slices of different sizes of at least 2 allowing the pie to be turned over.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =1a(4) =1a(5) =2a(6) =2a(7) =3a(8) =3a(9) =5a(10) =5a(11) =7a(12) =8a(13) =10a(14) =14a(15) =17a(16) =21a(17) =27a(18) =35a(19) =41a(20) =64a(21) =74a(22) =100a(23) =125a(24) =167a(25) =207a(26) =267a(27) =383a(28) =470a(29) =616

External references