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

A121331

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

Terms

    a(0) =1a(1) =2a(2) =6a(3) =15a(4) =39a(5) =99a(6) =258a(7) =671a(8) =1762a(9) =4657a(10) =12372a(11) =33036a(12) =88590a(13) =238483a(14) =644045a(15) =1744542a(16) =4737341a(17) =12894158a(18) =35165994a(19) =96083192a(20) =262951511a(21) =720685274a(22) =1977846334a(23) =5434588909a(24) =14949284828a(25) =41163690109a(26) =113451949753a(27) =312955174089a(28) =863965424349

External references