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 A002252 #18 Oct 14 2023 16:36:13 %S A002252 17,23,5,18,20,25,21,9,15,16,1,19,4,6,7,8,10,11,12,26,24,3,22,2,14,13 %N A002252 Order of letters on standard U.S. typewriter keyboard. %H A002252 Jared Diamond, <a href="https://www.discovermagazine.com/technology/the-curse-of-qwerty">"The Curse of QWERTY"</a>, Discover, Apr 01 1997. %e A002252 First row is Q, W, E, ... which are respectively the 17th, 23rd, ... letters; %e A002252 second row is A, S, D, F, ... which are respectively the 1st, 19th, 4th, 6th, ... letters. %o A002252 (Scala) "QWERTYUIOPASDFGHJKLZXCVBNM".toCharArray.map(_.toInt).map(_ - 64) // _Alonso del Arte_, Mar 20 2020 %Y A002252 Cf. A087622. %K A002252 nonn,fini,full %O A002252 1,1 %A A002252 _N. J. A. Sloane_