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%I A274186 #26 Jun 22 2016 09:23:37
%S A274186 0,-1,0,1,0,-1,0,9,0,-1,0,1,0,-1,0,225,0,-1,0,1,0,-1,0,9,0,-1,0,1,0,
%T A274186 -81,0,245025,0,-81,0,1,0,-1,0,9,0,-1,0,1,0,-1,0,225,0,-1,0,1,0,-1,0,
%U A274186 9,0,-81,0,6561,0,-4100625,0,218813450625,0,-4100625,0,6561,0,-81,0,9,0,-1,0,1,0,-1,0,225,0,-1,0,1,0,-1,0,9,0,-1,0,1,0,-81
%N A274186 Determinants of the Hankel matrices for the complement of the period-doubling sequence A035263.
%C A274186 The complement of the period-doubling sequence is generated by the map sending 0 -> 01, 1 -> 00.
%H A274186 Robbert Fokkink, Cor Kraaikamp, and Jeffrey Shallit, <a href="http://arxiv.org/abs/1511.06569">Hankel matrices for the period-doubling sequence</a>, arxiv preprint  arXiv:1511.06569 [math.CO], November 2015.
%Y A274186 Cf. A265025, A035263.
%K A274186 sign
%O A274186 1,8
%A A274186 _Jeffrey Shallit_, Jun 21 2016

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