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 A118681 #10 Nov 05 2023 09:01:57 %S A118681 0,30,503,507,509,510,1015,1019,1021,1022,2015,2031,2039,2043,2045, %T A118681 2046,3071,4031,4063,4079,4087,4091,4093,4094,8063,8190,30719,32703, %U A118681 65023,65407,65503,98303,129023,130559,130815,130943,131039,131055 %N A118681 Numbers that contain a single zero in bases 2 and 10. %t A118681 Select[Range[0,140000],DigitCount[#,10,0]==DigitCount[#,2,0]==1&] (* _Harvey P. Dale_, Apr 10 2012 *) %Y A118681 Intersection of A030130 and A043489. %K A118681 nonn,base %O A118681 1,2 %A A118681 _Zak Seidov_, May 21 2006