Number of separated bicyclic skeletons with n carbon atoms (see Parks et al. for precise definition).

A121162

Number of separated bicyclic skeletons with n carbon atoms (see Parks et al. for precise definition).

Terms

    a(0) =1a(1) =3a(2) =13a(3) =41a(4) =141a(5) =440a(6) =1391a(7) =4244a(8) =12913a(9) =38651a(10) =115082a(11) =339646a(12) =997709a(13) =2915010a(14) =8485573a(15) =24612666a(16) =71191458a(17) =205393819a(18) =591330506a(19) =1699226719a(20) =4874925420a(21) =13965498369a(22) =39957144189a(23) =114193222891a(24) =326023307022a(25) =929958622555

External references