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 A214095 #10 Jan 03 2019 06:29:35
%S A214095 1,1,2,2,1,4,4,3,4,3,6,4,11,8,10,11,4,4,5,20,21,21,23
%N A214095 Position of integer n in the list of first n natural numbers written out in French and arranged in alphabetical order.
%e A214095 We have a(14) = 8 because of the ordered list: cinq, deux, dix, douze, huit, neuf, onze, quatorze, quatre, sept, six, treize, trois, un.
%o A214095 (PARI) lista() = {my(v = ["un", "deux", "trois", "quatre", "cinq", "six", "sept", "huit", "neuf", "dix", "onze", "douze", "treize", "quatorze", "quinze", "seize", "dix-sept", "dix-huit", "dix-neuf", "vingt"], vs); for (i=1, #v, vp = vector(i, k, v[k]); vs = vecsort(vp); for (k=1, #vp, if (vs[k] == v[i], print1(k, ", "); break);););} \\ _Michel Marcus_, Jan 03 2019
%Y A214095 CF. A108017 (in English).
%K A214095 nonn,more,word
%O A214095 1,3
%A A214095 _Luc Comeau-Montasse_, Jul 03 2012