Number of set-systems covering n vertices with cut-connectivity >= 2, or 2-cut-connected set-systems.
A327112
Number of set-systems covering n vertices with cut-connectivity >= 2, or 2-cut-connected set-systems.
Terms
- a(0) =0a(1) =0a(2) =4a(3) =72a(4) =29856
External references
- oeis: A327112