Number of triples of set partitions of {1,...,n} with meet {{1},...,{n}} and join {{1,...,n}}.
A318399
Number of triples of set partitions of {1,...,n} with meet {{1},...,{n}} and join {{1,...,n}}.
Terms
- a(0) =1a(1) =6a(2) =84a(3) =2226a(4) =93246a(5) =5616492a(6) =459173406a(7) =48933260388
External references
- oeis: A318399