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 A168501 #19 Sep 08 2022 08:45:49 %S A168501 0,1,3,5,7,8,9,10,11,13,15,17,18,19,30,31,33,35,37,38,39,50,51,53,55, %T A168501 57,58,59,70,71,73,75,77,78,79,80,81,83,85,87,88,89,90,91,93,95,97,98, %U A168501 99,100,101,103,105,107,108,109,110,111,113,115,117,118,119,130,131,133 %N A168501 Numbers without the decimal digits 2, 4 and 6. %C A168501 Numbers that contain non-single or nonisolated digits only (see the first seven values of A167707 for the digits that are not 2, 4, or 6). %H A168501 G. C. Greubel, <a href="/A168501/b168501.txt">Table of n, a(n) for n = 1..1000</a> %t A168501 Select[Select[Select[Range[0, 4500], FreeQ[IntegerDigits@#, 2] &], FreeQ[IntegerDigits@#, 4] &], FreeQ[IntegerDigits@#, 6] &] (* _G. C. Greubel_, Jul 24 2016 *) %o A168501 (Magma) [n: n in [0..200] | IsEmpty(Set([2,4,6]) meet Set(Intseq(n)))]; // _Bruno Berselli_, Jul 25 2016 %Y A168501 Cf. A014263, A167707. %K A168501 nonn,base,easy,less %O A168501 1,3 %A A168501 _Juri-Stepan Gerasimov_, Nov 27 2009 %E A168501 Corrected (114 removed) by _R. J. Mathar_, Jun 04 2010