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%I #8 Apr 28 2020 09:21:37
%S 1,1,2,2,1,1,1,1,2,2,1,1,2,2,1,1,1,1,2,2,1,1,1,1,2,2,1,1,2,2,1,1,1,1,
%T 2,2,1,1,2,2,1,1,1,1,2,2,1,1,1,1,2,2,1,1,2,2,1,1,1,1,2,2,1,1,1,1,2,2,
%U 1,1,2,2,1,1,1,1,2,2,1,1,2,2,1,1,1,1,2,2,1,1,1,1,2,2,1,1,2,2,1,1,1,1,2,2,1,1,2,2,1,1,1,1,2,2,1,1,1,1,2,2,1,1,2,2,1,1,1,1,2,2,1,1,1,1,2,2,1,1,2,2,1,1,1,1,2,2,1,1,2,2,1,1,1,1,2,2,1,1,1,1,2,2,1,1,2,2,1,1,1,1,2,2,1,1,1,1,2,2,1,1,2,2,1,1,1,1,2,2,1,1,2
%N Doubled Fibonacci word: the A003842 sequence replacing 1 with 1,1 and 2 with 2,2.
%C Suggested by reading Mignosi et al. (2002).
%H F. Mignosi, A. Restivo, M. Sciortino, <a href="http://dx.doi.org/10.1016/S0304-3975(00)00436-9">Words and forbidden factors</a>, WORDS (Rouen, 1999). Theoret. Comput. Sci. 273 (2002), no. 1-2, 99--117. MR1872445 (2002m:68096).
%Y Cf. A003842, A095190.
%K nonn
%O 0,3
%A _N. J. A. Sloane_, Jul 10 2012