%I
%S 1,2,6,21,43,44,50,52,53,103,121,123,197,203,204
%N Take any three consecutive terms and write them down (in French): their letters sum up to a square number. This is the slowest strictly increasing such sequence.
%C Starting with "0,1" would give another sequence.
%e 1 2 6 = "un+deux+six" = 9 letters; 9 is 3^2.
%e 197 203 204 = "cent quatrevingtdixsept + deux cent trois + deux cent quatre" = 49 letters; 49 is 7^2.
%K base,easy,nonn,word
%O 1,2
%A _Eric Angelini_, Mar 07 2005
