Number of unlabeled biconnected graphs on n vertices without 4-cycles or 5-cycles.
A366223
Number of unlabeled biconnected graphs on n vertices without 4-cycles or 5-cycles.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =1a(4) =2a(5) =6a(6) =14a(7) =44a(8) =163a(9) =722a(10) =3683a(11) =21555a(12) =141664a(13) =1035272a(14) =8334650a(15) =73511721a(16) =707535039
External references
- oeis: A366223