1620479
domain: N
Appears in sequences
- Number of trivalent connected simple graphs with 2n nodes and girth at least 5.at n=12A014372
- Irregular triangle C(n,g) counting connected trivalent simple graphs on 2n vertices with girth at least g.at n=33A185131
- Irregular triangle C(n,k)=number of connected k-regular graphs on n vertices having girth at least five.at n=86A186715