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 A168042 #6 Mar 30 2012 18:52:35 %S A168042 0,1,9,10,11,14,19,40,41,44,49,90,91,94,99,100,101,104,109,110,111, %T A168042 114,119,140,141,144,149,190,191,194,199,400,404,410,411,414,419,440, %U A168042 441,444,490,494,900,901,904,909,910,914,940,944,949,990,994,999,1000,1001 %N A168042 The non-single or nonisolated numbers whose digits are all square. %C A168042 Square digits are 0, 1, 4 or 9. The non-single or nonisolated numbers are 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20, 21,.. %Y A168042 Cf. A000290, A157908, A167707. %K A168042 nonn,base,less %O A168042 1,3 %A A168042 _Juri-Stepan Gerasimov_, Nov 17 2009 %E A168042 Entries checked by _R. J. Mathar_, May 30 2010