Number of n-node connected graphs with no cycles of length less than 5.
A126757
Number of n-node connected graphs with no cycles of length less than 5.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =8a(6) =18a(7) =47a(8) =137a(9) =464a(10) =1793a(11) =8167a(12) =43645a(13) =275480a(14) =2045279a(15) =17772647a(16) =179593823a(17) =2098423758a(18) =28215583324a(19) =434936005284
External references
- oeis: A126757