This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A125672 #3 Mar 30 2012 17:25:50 %S A125672 1,3,11,35,113,351,1093,3348,10218,30906,93005 %N A125672 Classification of bicyclics with the parameter 'alpha' having the value of 3. See the paper by Hendrickson and Parks for details. %C A125672 Here 'alpha' is the number of atoms the two rings have in common. %D A125672 James B. Hendrickson and Camden A. Parks, "Generation and Enumeration of Carbon Skeletons", J. Chem. Inf. Comput. Sci., vol. 31 (1991), pp. 101-107. See Table VII column 5 on page 104. %e A125672 If n=5 then the number of bicyclics when 'alpha' = three is 1. %e A125672 If n=6 then the number of bicyclics when 'alpha' = three is 3. %e A125672 If n=7 then the number of bicyclics when 'alpha' = three is 11. %e A125672 If n=8 then the number of bicyclics when 'alpha' = three is 35. %Y A125672 Cf. A121330, A121331, A121332, A121333, A125064. %K A125672 nonn %O A125672 5,2 %A A125672 _Parthasarathy Nambi_, Jan 29 2007