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 A141733 #3 Aug 24 2012 10:50:01 %S A141733 1,5,18,84,311,1286,4636,21607,79398,328540,1183512,5518960,20382304, %T A141733 84281919,303834326,1416057916,5203506983,21531002534,77561732700, %U A141733 361685609752,1335790797424,5523583535712,19912388519360,92801359368576 %N A141733 Binary digits, representing the rows of triangle A141727, written in base 10. %Y A141733 Cf. A141727 - A141732, A141734 - A141746. %K A141733 easy,nonn %O A141733 1,2 %A A141733 _Paolo P. Lava_ and _Giorgio Balzarotti_, Jul 02 2008