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An example of a d-perfect sequence.
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%I #17 Jul 11 2016 02:51:42

%S 1,0,1,1,1,1,0,0,1,1,0,0,1,1,1,1,1,1,0,0,1,1,1,1,1,1,0,0,1,1,0,0,1,1,

%T 0,0,1,1,1,1,1,1,0,0,1,1,0,0,1,1,0,0,1,1,1,1,1,1,0,0,1,1,1,1,1,1,0,0,

%U 1,1,1,1,1,1,0,0,1,1,0,0,1,1,0,0,1,1,1,1,1,1,0,0,1,1,1,1,1,1,0,0,1,1,1,1,1

%N An example of a d-perfect sequence.

%C Image, under the coding a,c,d -> 1, b -> 0, of the fixed point, starting with a, of the morphism a -> ab, b -> cd, c -> cd, d -> bb. - _Jeffrey Shallit_, May 15 2016

%H D. Kohel, S. Ling and C. Xing, <a href="http://www.maths.usyd.edu.au/u/kohel/doc/perfect.ps">Explicit Sequence Expansions</a>, in Sequences and their Applications, C. Ding, T. Helleseth, and H. Niederreiter, eds., Proceedings of SETA'98 (Singapore, 1998), 308-317, 1999. DOI: 10.1007/978-1-4471-0551-0_23

%F a(n) = A090345(n) mod 2. - _Christian G. Bower_, Jun 12 2005

%K nonn

%O 1,1

%A _N. J. A. Sloane_.

%E More terms from _Christian G. Bower_, Jun 12 2005