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 A014388 #8 Oct 21 2018 13:51:01 %S A014388 3,1,4,4,5,3,6,11,7,15,8,13,9,17,10,24,11,23,12,73,13,3000,14,11000, %T A014388 15,15000,16,101,17,104,18,103,19,111,20,115,21,113,22,117,23,124,24, %U A014388 123,25,173,26,323,27,373,28,1104,29,1103,30,1111,31 %N A014388 a(2n-1) = n+2, a(2n) = smallest number requiring n+2 letters in English. %C A014388 Uses number forms containing "and"; that is, "one hundred and one" rather than "one hundred one". - _Sean A. Irvine_, Oct 20 2018 %Y A014388 Cf. A000916, A001166, A014388, A045494, A045495. %K A014388 nonn,word,easy %O A014388 1,1 %A A014388 Jacques Haubrich (jhaubrich(AT)freeler.nl) %E A014388 More terms from _Sean A. Irvine_, Oct 20 2018