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 A006994 M3208 #21 Jan 21 2022 00:46:34 %S A006994 4,3,3,6,4,5,4,6,6,6,11,10,10,12,10,11,10,12,12,8,12,11,11,14,12,13, %T A006994 12,14,14,8,12,11,11,14,12,13,12,14,14,5,9,8,8,11,9,10,9,11,11,9,13, %U A006994 12,12 %N A006994 Number of letters in n (in Russian). %D A006994 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A006994 <a href="/index/Lc#letters">Index entries for sequences related to number of letters in n</a> %e A006994 один, два, три, четыре, пять, шесть, семь, восемь, девять, десять, одиннадцать, двенадцать, .... %K A006994 nonn,word %O A006994 1,1 %A A006994 _Mira Bernstein_ %E A006994 Corrected by _Alexander Adamchuk_, May 11 2005