Number of simple unlabeled n-node graphs with 2 center nodes.
A052438
Number of simple unlabeled n-node graphs with 2 center nodes.
Terms
- a(0) =0a(1) =2a(2) =0a(3) =2a(4) =4a(5) =19a(6) =84a(7) =821a(8) =12485a(9) =343572a(10) =16164685a(11) =1289300669
External references
- oeis: A052438