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 A008553 #16 Aug 27 2023 16:43:55 %S A008553 20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42, %T A008553 43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65, %U A008553 66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85 %N A008553 Numbers whose American English name contains the letter 'y'. %H A008553 Paolo Xausa, <a href="/A008553/b008553.txt">Table of n, a(n) for n = 1..10000</a> %H A008553 Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/NonRecursions.html">Non Recursions</a> %t A008553 A008553Q[n_]:=StringContainsQ[IntegerName[n,"Words"],"y"];Select[Range[0,200],A008553Q] (* _Paolo Xausa_, Aug 12 2023 *) %Y A008553 Cf. A008519 (o), A008520 (e), A008522 (t), A008536 (n), A008538 (s), A008540 (f). %K A008553 nonn,word %O A008553 1,1 %A A008553 _N. J. A. Sloane_ %E A008553 Name edited by _Paolo Xausa_, Aug 12 2023