Number of families of 3-subsets of an n-set that cover all 2-subsets.
A302394
Number of families of 3-subsets of an n-set that cover all 2-subsets.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =5a(5) =388a(6) =477965a(7) =19199206747
External references
- oeis: A302394