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 A096731 #3 Mar 30 2012 16:49:59 %S A096731 1,31,84,116,873,4319,16555,38112,67828,358274,372743,16186423 %N A096731 Values of continued fraction for Pi/2 associated with the records in A096464. %Y A096731 Cf. A096464, A053300. %K A096731 nonn %O A096731 1,2 %A A096731 _N. J. A. Sloane_, Aug 16 2004