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%I #2 Mar 30 2012 17:33:54
%S 101,101,110011,111000111,111110000011111,111111110000000011111111,
%T 111111111111100000000000001111111111111,
%U 111111111111111111111000000000000000000000111111111111111111111
%N Concatenation of k digits 1, k digits 0 and k digits 1, where k is the n-th positive Fibonacci number.
%Y Cf. A000045, A134803, A138709, A138722.
%K base,easy,nonn
%O 1,1
%A _Omar E. Pol_, Mar 29 2008