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 A000953 #14 Oct 15 2015 14:30:40 %S A000953 1,5,24,109,465,1943,7827,31095,121356,469235,1797376,6844290,25928036 %N A000953 Number of free nonplanar polyenoids with n nodes. %D A000953 S. J. Cyvin, J. Brunvoll, E. Brendsdal, B. N. Cyvin and E. K. Lloyd, Enumeration of polyene hydrocarbons: a complete mathematical solution, J. Chem. Inf. Comput. Sci., 35 (1995) 743-751 %H A000953 S. J. Cyvin, J. Brunvoll, E. Brendsdal, B. N. Cyvin and E. K. Lloyd, <a href="/A002057/a002057.pdf">Enumeration of polyene hydrocarbons: a complete mathematical solution</a>, J. Chem. Inf. Comput. Sci., 35 (1995) 743-751. [Annotated scanned copy] %F A000953 a(n) = A000207(n) - A000942(n). - _Sean A. Irvine_, Oct 15 2015 %K A000953 nonn,more %O A000953 7,2 %A A000953 E. K. Lloyd (E.K.Lloyd(AT)soton.ac.uk) %E A000953 a(16)-a(19) from _Sean A. Irvine_, Oct 15 2015