Number of noncrossing partitions of an n-set up to rotation with all blocks having a prime number of elements.
A303874
Number of noncrossing partitions of an n-set up to rotation with all blocks having a prime number of elements.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =1a(5) =2a(6) =3a(7) =5a(8) =8a(9) =17a(10) =37a(11) =71a(12) =179a(13) =366a(14) =919a(15) =2069a(16) =5027a(17) =12053a(18) =29098a(19) =71846a(20) =175485a(21) =437438a(22) =1087122a(23) =2723326a(24) =6860525a(25) =17301606a(26) =43957596a(27) =111748571a(28) =285591775a(29) =731432424
External references
- oeis: A303874