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 A125299 #12 Feb 14 2023 12:08:50 %S A125299 0,2,3,4,5,6,7,9,10,12,13,14,15,16,17,19,20,21,22,23,24,25,26,27,28, %T A125299 29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51, %U A125299 52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70 %N A125299 Numbers whose names in English start with a consonant. %H A125299 Michael S. Branicky, <a href="/A125299/b125299.txt">Table of n, a(n) for n = 1..10000</a> %o A125299 (Python) %o A125299 def ok(n): %o A125299 s = str(n) %o A125299 if s[0] in "02345679": return True %o A125299 while len(s) > 3: s = s[:-3] %o A125299 return int(s) in {10, 12, 13, 14, 15, 16, 17, 19} %o A125299 print([k for k in range(71) if ok(k)]) # _Michael S. Branicky_, Nov 27 2022 %K A125299 nonn,word %O A125299 1,2 %A A125299 _Tanya Khovanova_, Dec 08 2006 %E A125299 a(1) = 0 inserted and a(39) and beyond from _Michael S. Branicky_, Nov 27 2022