Number of set partitions of [n] with symmetric block size list of length seven.
A275291
Number of set partitions of [n] with symmetric block size list of length seven.
Terms
- a(0) =1a(1) =4a(2) =50a(3) =250a(4) =2160a(5) =12256a(6) =91925a(7) =559987a(8) =3939653a(9) =24964844a(10) =170468820a(11) =1104449861a(12) =7440709045a(13) =48835462696a(14) =327230257098
External references
- oeis: A275291