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 A195682 #5 Mar 30 2012 18:57:48 %S A195682 25,9997,21433,94265,1029821,926902721,8606342785,374439945601, %T A195682 918049206661,11035479109045,107207314895753,226564822394569, %U A195682 322736658181277,1636868962618493,5652252040004741,129187165603885181,82664039951186181157 %N A195682 Hypotenuses of primitive Pythagorean triples in A195680 and A195681. %C A195682 See A195500 for discussion and list of related sequences; see A195680 for Mathematica program. %Y A195682 Cf. A195500, A195680, A195681. %K A195682 nonn %O A195682 1,1 %A A195682 _Clark Kimberling_, Sep 22 2011