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%I #25 Mar 05 2017 03:18:19
%S 2,5,10,100
%N Numbers whose letters are in alphabetical order when spelled in French.
%C 40 (forty) is the only number with this property in English.
%C 1 (un) is the only number with the reverse property in French. - _Michel Marcus_, Nov 13 2016
%C 1 (one) is the only number with the reverse property in English. - _Matt Westwood_, Feb 25 2017
%D D. Wells, The Penguin Dictionary of Curious and Interesting Numbers, p. 101.
%e The names in French for a(1)..a(4) are: deux, cinq, dix, cent.
%K nonn,word,fini,full
%O 1,1
%A _Matt Westwood_, Oct 15 2016
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