Number of bridged bicyclic skeletons with n carbon atoms (see Parks et al. for precise definition).
A121332
Number of bridged bicyclic skeletons with n carbon atoms (see Parks et al. for precise definition).
Terms
- a(0) =0a(1) =1a(2) =5a(3) =20a(4) =71a(5) =235a(6) =753a(7) =2345a(8) =7190a(9) =21753a(10) =65188a(11) =193834a(12) =527743a(13) =1683615a(14) =4927394a(15) =14367845a(16) =41761634a(17) =121052806a(18) =350049108a(19) =1010123293a(20) =2909478000
External references
- oeis: A121332