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 A000865 #23 Dec 11 2023 14:16:09 %S A000865 1,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115, %T A000865 116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132, %U A000865 133,134,135 %N A000865 Numbers beginning with letter 'o' in English. %H A000865 John Cerkan, <a href="/A000865/b000865.txt">Table of n, a(n) for n = 1..10000</a> %t A000865 Select[Range[1000],First[Characters[IntegerName[#,"Words"]]]=="o"&] (* _James C. McMahon_, Dec 11 2023 *) %Y A000865 Subsequence of A000852. %Y A000865 Subsequence of A131835. %K A000865 word,nonn %O A000865 1,2 %A A000865 _N. J. A. Sloane_