Number of set partitions of [n] into exactly six blocks where sizes of distinct blocks are coprime.
A280884
Number of set partitions of [n] into exactly six blocks where sizes of distinct blocks are coprime.
Terms
- a(0) =1a(1) =21a(2) =56a(3) =1386a(4) =252a(5) =18942a(6) =28512a(7) =837837a(8) =122122a(9) =17600583a(10) =1445808a(11) =140411908a(12) =301302288a(13) =10781435088a(14) =79318464a(15) =333208994139a(16) =6813685494a(17) =597189699029a(18) =582524800704
External references
- oeis: A280884