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 A033036 #12 May 28 2016 12:05:24
%S A033036 1,3,5,7,9,12,14,16,18,20,34,36,38,40,42,56,58,60,62,64,78,80,82,84,
%T A033036 86,100,102,104,106,108,133,135,137,139,141,155,157,159,161,163,177,
%U A033036 179,181,183,185,199,201,203,205,207,221,223,225,227,229,375,377,379
%N A033036 Numbers all of whose base 11 digits are odd.
%o A033036 (PARI) {for(ixp=1,380, casi = ixp; apv=1;
%o A033036 while(casi != 0,
%o A033036 cvd = casi%11; casi = (casi - cvd) / 11;
%o A033036 if(cvd%2==0, apv=0; break()));
%o A033036 if(apv==1,print1(ixp,", ")))} \\ _Douglas Latimer_, May 17 2012
%K A033036 nonn,base
%O A033036 1,2
%A A033036 _Clark Kimberling_
%E A033036 More terms from _Douglas Latimer_, May 17 2012