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 A031445 #20 Aug 03 2023 03:43:59 %S A031445 8,33,34,36,40,48,131,133,134,137,138,140,145,146,148,152,161,162,164, %T A031445 168,176,193,194,196,200,208,224,519,523,525,526,531,533,534,537,538, %U A031445 540,547,549,550,553,554,556,561,562,564,568,579,581,582,585,586,588,593,594,596,600 %N A031445 Numbers whose base-2 representation has 2 more 0's than 1's. %H A031445 Amiram Eldar, <a href="/A031445/b031445.txt">Table of n, a(n) for n = 1..10000</a> %t A031445 Select[Range[600],DigitCount[#,2,0]==DigitCount[#,2,1]+2&] (* _Harvey P. Dale_, Nov 26 2014 *) %Y A031445 Cf. A007088. %K A031445 nonn,base %O A031445 1,1 %A A031445 _Clark Kimberling_