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 A057888 #2 Feb 27 2009 03:00:00 %S A057888 1,9,5,3,7,2,8,4,0,6,90,91,99,95,93,97,92,98,94,96,50,51,59,55,53,57, %T A057888 52,58,54,56,30,31,39,35,33,37,32,38,34,36,10,11,19,15,13,17,12,18,14, %U A057888 16,70,71,79,75,73,77,72,78,74,76,20,21 %N A057888 In Japanese: 1-digit numbers in a-i-u-e-o order, then 2-digit numbers in a-i-u-e-o order, etc. %C A057888 I used "yon" for 4, "nana" for 7 and "kyuu" for 9. %K A057888 base,easy,nonn,word %O A057888 0,2 %A A057888 Robert Lozyniak (11(AT)onna.com), Sep 20 2000