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 A044851 #10 Jan 18 2018 03:48:07 %S A044851 11,22,33,44,55,66,77,88,99,100,110,112,113,114,115,116,117,118,119, %T A044851 122,133,144,155,166,177,188,199,200,211,220,221,223,224,225,226,227, %U A044851 228,229,233,244,255,266,277,288,299,300,311,322 %N A044851 Positive integers having no fewer base-10 runs of even length than odd. %C A044851 Starts to differ from A033283 first for the numbers 1011 and 1022 which have 1 run of even length, 2 runs of odd length and maximum run length of 2. So these two numbers are in A033283 but not in this sequence. [From _R. J. Mathar_, Oct 20 2008] %K A044851 nonn,base %O A044851 1,1 %A A044851 _Clark Kimberling_