%I
%S 1,1,0,0,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,1,1,1,0,0,1,1,0,1,1,1,0,0,1,0,
%T 1,1,1,1,1,1,1,0,1,0,0,1,0,1,0,0,1,1,1,1,1,0,0,0,0,0,1,0,1,0,1,1,1,1,
%U 1,0,0,1,1,1,0,0,1,1,1,0,0,1,1,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,0,1,1,1,0,0
%N Expansion of golden ratio (1 + sqrt(5))/2 in base 2.
%C Differs from A004555 in the 2nd digit.  _R. J. Mathar_, Dec 15 2008
%e 1.1001111000110111011110011011100101...
%t RealDigits[ (1+Sqrt[5])/2, 2, 1000][[1]]
%o (PARI) concat(binary((1+sqrt(5))/2)) \\ _Michel Marcus_, Dec 14 2017
%Y Cf. A001622, A004555, A004714, A169868.
%K base,cons,easy,nonn
%O 1,1
%A _Benoit Cloitre_, Mar 09 2002
