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 A088344 #1 Feb 19 2004 03:00:00 %S A088344 39,27,81,24,37,29,21,87,65,61,19,68,35,90,49,17,71,47,53,14,41,15,94, %T A088344 32,34,78,29,69,14,34,89,7,43,4,67,21,12,91,40,16,33,87,42,4,89,11,62, %U A088344 26,14,67,34,86,78,44,1,10,46,3,53,20,33,13,81,5,96,9,94,14,31 %N A088344 Powers of 3 grouped in pairs of 2 digits. %Y A088344 Cf. A030622 A030623 A030624. %K A088344 easy,nonn,base %O A088344 1,1 %A A088344 Douglas Winston (douglas.winston(AT)srupc.com), Nov 07 2003