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 A086888 #6 Mar 31 2012 10:26:01 %S A086888 9,57,57,95,9,99,147,177,63,225,231,243,177,279,411,441,291,57,441, %T A086888 411,381,651,609,441,669,355,267,531,801,693,789,417,711,897,477,155 %N A086888 a(n)=sqrt(s^2 - 4*p) where s=A086533(n), p=A086860(n). %K A086888 more,nonn %O A086888 1,1 %A A086888 _Lekraj Beedassy_, Sep 17 2003 %E A086888 More terms from _Ray Chandler_, Oct 23 2003