Number of T_0 (costrict) set-systems covering a subset of {1..n} where every two covered vertices appear together in some edge (cointersecting).
A327052
Number of T_0 (costrict) set-systems covering a subset of {1..n} where every two covered vertices appear together in some edge (cointersecting).
Terms
- a(0) =1a(1) =2a(2) =6a(3) =75a(4) =24981a(5) =2077072342
External references
- oeis: A327052