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 A362441 #3 Apr 22 2023 13:06:47 %S A362441 6,11,23,124,113323371373 %N A362441 a(1) = 6; thereafter a(n) = smallest number with a(n-1) letters in British English. %C A362441 The GCHQ Puzzle Book gives an alternative for a(5). %C A362441 a(6) is probably not well defined. %C A362441 See A362442 for an American English version. %D A362441 GCHQ, The GCHQ Puzzle Book, Penguin, 2016. See pages 92 and 275. %Y A362441 Cf. A005589, A362123, A362442. %K A362441 nonn,word %O A362441 1,1 %A A362441 _N. J. A. Sloane_, Apr 22 2023