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 A180961 #15 May 27 2024 22:38:34 %S A180961 27,37,47,57,67,71,72,73,74,75,76,78,79,87,97,101,102,103,104,105,106, %T A180961 108,109,110,112,201,202,203,204,205,206,208,209,210,212,301,302,303, %U A180961 304,305,306,308,309,310,312,401,402,403,404,405,406,408,409,410,412 %N A180961 Numbers such that the American English name of the number has four syllables. %C A180961 There are a finite number of terms, considering all terms up to 10^66 using English names of large numbers and various conventional extensions thereof (see Wikipedia link). - _Michael S. Branicky_, May 27 2024 %H A180961 Kyle Stern, <a href="/A180961/b180961.txt">Table of n, a(n) for n = 1..100</a> %H A180961 Wikipedia, <a href="https://en.wikipedia.org/wiki/Names_of_large_numbers">Names of Large Numbers</a> %F A180961 A075774(a(n)) = 4. - _Michael S. Branicky_, May 27 2024 %e A180961 27 = "twen-ty sev-en", 101 = "one hun-dred one" %o A180961 (Python) # uses function in A075774 %o A180961 print([k for k in range(500) if A075774(k) == 4]) # _Michael S. Branicky_, May 27 2024 %Y A180961 Cf. A075774. %K A180961 easy,nonn,fini,word %O A180961 1,1 %A A180961 _Kyle Stern_, Sep 28 2010 %E A180961 Corrected by _Kyle Stern_, Sep 30 2010