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 A096896 #3 Mar 30 2012 17:29:16 %S A096896 5,17,13,65,29,25,53,257,85,41,125,73,173,65,61,1025,293,97,365,89,85, %T A096896 137,533,265,629,185,733,113,845,169,965,4097,157,305,149,145,1373, %U A096896 377,205,281,1685,193,1853,185,181,545,2213,1033,2405,641,325,233,2813,745 %N A096896 Least hypotenuse of primitive Pythagorean triangles with even leg 4n. %Y A096896 Cf. A088557, A088558, A096891-A096900. %K A096896 nonn %O A096896 1,1 %A A096896 _Ray Chandler_, Jul 14 2004