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Continued fraction for sum(k>=0,1/4^(2^k-1)).
0

%I #5 Mar 30 2012 18:39:16

%S 1,3,1,3,4,3,1,3,3,1,3,3,1,2,1,3,3,1,3,4,3,1,3,3,1,2,1,3,4,3,1,3,3,1,

%T 2,1,3,3,1,3,3,1,3,4,3,1,3,3,1,2,1,3,4,3,1,3,3,1,3,3,1,2,1,3,3,1,3,4,

%U 3,1,2,1,3,3,1,3,4,3,1,3,3,1,2,1,3,3,1,3,3,1,3,4,3,1,3,3,1,2,1,3,4,3,1,3,3

%N Continued fraction for sum(k>=0,1/4^(2^k-1)).

%C Contains only elements 1<=a(n)<=4

%Y Cf. A004200, A006464.

%K cofr,nonn

%O 1,2

%A _Benoit Cloitre_, Apr 10 2003