%I #9 Aug 16 2012 23:23:16
%S 0,1,2,0,3,1,4,2,0,5,3,1,6,4,2,7,0,5,3,8,1,6,4,9,2,7,0,5,10,3,8,1,6,
%T 11,4,9,2,7,12,0,5,10,3,8,13,1,6,11,4,9,14,2,7,12,0,5,10,15,3,8,13,1,
%U 6,11,16,4,9,14,2,7,12
%N Value of x in the n-th number of the form x+y*(1+sqrt(2)).
%C A215590 gives the value of y.
%H Peter G. Anderson, <a href="/A215589/b215589.txt">Table of n, a(n) for n = 1..1064</a>
%Y Cf. A215590.
%K nonn
%O 1,3
%A _Peter G. Anderson_, Aug 16 2012
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