Number of simple connected graphs with n nodes rooted at a pair of distinguished vertices.
A304074
Number of simple connected graphs with n nodes rooted at a pair of distinguished vertices.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =23a(4) =162a(5) =1549a(6) =21090a(7) =446061a(8) =15673518a(9) =961338288a(10) =105752617892
External references
- oeis: A304074