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 A171763 #9 Sep 01 2020 08:42:05
%S A171763 5,9,11,17,19,21,23,33,35,37,39,41,43,45,47,65,67,69,71,73,75,77,79,
%T A171763 81,83,85,87,89,91,93,95,129,131,133,135,137,139,141,143,145,147,149,
%U A171763 151,153,155,157,159,161,163,165,167,169,171,173,175,177,179
%N A171763 Odd numbers whose binary expansion begins 10.
%H A171763 Amiram Eldar, <a href="/A171763/b171763.txt">Table of n, a(n) for n = 1..10000</a>
%t A171763 Select[Range[3,181,2],Take[IntegerDigits[#,2],2]=={1,0}&] (* _Harvey P. Dale_, Jun 09 2016 *)
%Y A171763 Cf. A171757, A171758, A171764.
%Y A171763 A subsequence of A004754.
%K A171763 nonn,base
%O A171763 1,1
%A A171763 _N. J. A. Sloane_, Oct 12 2010