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 A074132 #4 Dec 05 2013 19:55:33 %S A074132 1,6,15,36,65,108,175,264,369,510,671,864,1105,1386,1695,2048,2465, %T A074132 2934,3439,4000,4641,5346,6095,6912,7825,8814,9855,11004,12209,13500, %U A074132 14911,16416,17985,19652,21455,23364,25345,27436,29679,32040,34481 %N A074132 Row sums of triangle A074135. %Y A074132 Cf. A074135. %K A074132 nonn,easy %O A074132 1,2 %A A074132 _Amarnath Murthy_, Aug 27 2002 %E A074132 Edited and extended by _David Wasserman_, Oct 31 2006