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 A362120 #13 Jul 09 2025 05:01:37
%S A362120 8,7,1,3,3,12,13,17,21,23,23,73,101,103,103,112,113,117,121,123,123,
%T A362120 173,323,373,1103,1103,1112,1113,1117,1121,1123,1123,1173,1323,1373,
%U A362120 3323,3373,11373,13323,13373,17373,23323,23373,73373,101373,103323,103373,111373
%N A362120 a(n) is the smallest positive number whose American English name has the letter "e" in the n-th position.
%D A362120 GCHQ, The GCHQ Puzzle Book, Penguin, 2016. See page 70.
%o A362120 (Python)
%o A362120 from itertools import count
%o A362120 from num2words import num2words
%o A362120 def A362120(n): return next(filter(lambda k:len(s:=num2words(k).replace('-','').replace(',','').replace(' and ','').replace(' ',''))>=n and s[n-1]=='e',count(1))) # _Chai Wah Wu_, Apr 21 2023
%Y A362120 See A164790, A362121, A362122 for other versions.
%K A362120 nonn,word
%O A362120 1,1
%A A362120 _N. J. A. Sloane_, Apr 20 2023