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

A121333

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

Terms

    a(0) =0a(1) =0a(2) =0a(3) =1a(4) =6a(5) =32a(6) =140a(7) =567a(8) =2141a(9) =7731a(10) =26929a(11) =91269a(12) =302566a(13) =985178a(14) =3160480a(15) =10013151a(16) =31390529a(17) =97519183a(18) =300596765a(19) =920275456a(20) =2800635344

External references