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 A238100 #6 Feb 25 2014 19:01:58 %S A238100 5,20,39,166,253,974 %N A238100 Number of canonical generators for Z_2 + Z_n. %H A238100 Bryson W. Finklea, Terri Moore, Vadim Ponomarenko and Zachary J. Turner, <a href="http://dx.doi.org/10.2140/involve.2008.1.159">Invariant polynomials and minimal zero sequences</a>, Involve, 1:2 (2008), pp. 159-165. %Y A238100 Cf. A002956, A082641, A238101, A238102. %K A238100 nonn,more %O A238100 2,1 %A A238100 _N. J. A. Sloane_, Feb 25 2014