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 A345712 #6 Jun 24 2021 21:36:06 %S A345712 5,2,8,4,7,15,12,17,6,19,18,11,27,20,9,10,25,16,13,14,105,22,30,98,32, %T A345712 28,40,108,33,3,57,38,62,35,26,65,66,23,24,136,70,129,48,75,138,61,47, %U A345712 87,68,91,31,173,97,153,77,29,58,49,60,93,106,174,96,59,114,99,54,55,42,123,128,188,102,64 %N A345712 Lexicographically earliest sequence of distinct positive terms such that the French names of the entries form a new sequence of French names where every original entry is doubled (see the Comments section for an explanation and the Crossrefs section for the original English version). %D A345712 Translated in French, the first names of the sequence are: %D A345712 CINQ, DEUX, HUIT, QUATRE, SEPT, QUINZE, DOUZE, DIX-SEPT, SIX, DIX-NEUF, DIX-HUIT, ONZE, VINGT-SEPT, VINGT, NEUF, DIX, VINGT-CINQ, SEIZE, TREIZE, QUATORZE, CENT CINQ, VINGT-DEUX, TRENTE, QUATRE-VINGT-DIX-HUIT, TRENTE-DEUX, ... %D A345712 If we now take the 5th letter of the above French sequence (D), the 2nd (I) and the 8th (X) we spell D.I.X. (TEN in French) and 10 is the double of a(1) = 5. We then take the 4th letter of the sequence (Q), the 7th (U), the 15th (A), the 12th (T), the 17th (R) and the 6th (E) to form Q.U.A.T.R.E. (FOUR in French) and 4 is the double of a(2) = 2. Etc. %Y A345712 Cf. A131744, A345711 (English version). %K A345712 nonn,word %O A345712 1,1 %A A345712 _Eric Angelini_ and _Carole Dubois_, Jun 24 2021