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 A088665 #4 Oct 01 2013 17:57:45 %S A088665 59,7,193,271,103,222,76,878,1324,1042,248,1034,1577,1623,661,3364, %T A088665 2694,604,2027,274,2707,498,1259,5181,1657,6262,4903,5098,635,1104, %U A088665 1142,173,5452,3401,5277,3779,3644,2903,1525,1149,5121,5526,6470,6496,261,581 %N A088665 q such that p^4 + q^4 = r^4 + s^4 = a(n). %H A088665 D. J. Bernstein, <a href="http://cr.yp.to/sortedsums/two4.1000000">List of 516 primitive solutions p^4 + q^4 = r^4 + s^4</a> %Y A088665 Cf. A003824, A088728, A088867. %K A088665 fini,nonn %O A088665 1,1 %A A088665 _Cino Hilliard_, Nov 23 2003