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 A084411 #4 Dec 05 2013 19:56:17 %S A084411 1,5,23,27,101,85,311,193,317,481,931,743,1895,1107,1453,1875,3875, %T A084411 2469,6349,3213,3909,4666,10643,5765,6755,7821,8960,10213,18335,11986, %U A084411 25873,13969,15715,17530,19407,21497,39593,24400,26826,29329,55607 %N A084411 Row sums of triangle A084408. %Y A084411 Cf. A084408, A084409, A084410. %K A084411 nonn,easy %O A084411 1,2 %A A084411 _Amarnath Murthy_, Jun 01 2003 %E A084411 Edited and extended by _David Wasserman_, Dec 27 2004