%I #13 Feb 11 2017 02:32:16
%S 1,1,-1,1,1,1,-1,1,-1,-1,-1,1,1,1,1,-1,1,1,-1,1,1,1,-1,1,-1,-1,-1,1,1,
%T 1,-1,1,-1,-1,1,-1,-1,-1,-1,1,-1,-1,-1,1,1,1,1,-1,1,1,-1,1,1,1,1,-1,1,
%U 1,1,-1,-1,-1,1,-1,1,1,-1,1,1,1,-1,1,-1,-1,-1,1
%N An analog of the Golay-Rudin-Shapiro sequence (A020985) in base -2 (see comments).
%C The sequence is defined by the formula: a(n) = 1 if A269027(n) = A269528(n), otherwise a(n) = -1.
%C Since A269027, A269528 are analogs of Thue-Morse sequence (A010060) and A268411 in base -2 correspondingly, then, by author's comment in A020985, the sequence is an analog of Golay-Rudin-Shapiro sequence in base -2.
%H Peter J. C. Moses, <a href="/A269529/b269529.txt">Table of n, a(n) for n = 0..1999</a>
%H Vladimir Shevelev, <a href="http://arxiv.org/abs/1603.04434">Two analogs of Thue-Morse sequence</a>, arXiv:1603.04434 [math.NT], 2016.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Negabinary.html">Negabinary</a>
%Y Cf. A020985, A039724, A010060, A268411, A269027, A269528.
%K sign,base
%O 0
%A _Vladimir Shevelev_, Feb 29 2016
%E More terms from _Peter J. C. Moses_, Feb 29 2016