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

A121165

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

Terms

    a(0) =1a(1) =2a(2) =7a(3) =15a(4) =44a(5) =107a(6) =295a(7) =763a(8) =2077a(9) =5533a(10) =15053a(11) =40697a(12) =111028a(13) =302583a(14) =828176a(15) =2267939a(16) =6225340a(17) =17103834a(18) =47062513a(19) =129616014a(20) =357364708a(21) =986110340a(22) =2723373330a(23) =7526669582a(24) =20816208417a(25) =57606623093a(26) =159514679011a(27) =441942381946

External references