%I
%S 0,0,0,1,0,1,0,1,2,0,1,2,0,1,2,0,3,1,2,0,3,1,2,0,3,1,4,2,0,3,1,4,2,0,
%T 3,1,4,2,0,5,3,1,4,2,0,5,3,1,4,2,0,5,3,1,6,4,2,0,5,3,1,6,4,2,0,5,3,1,
%U 6,4,2,7
%N Value of y in the nth number of the form x+y*(1+sqrt(2)).
%C A215589 gives the value of x.
%H Peter G. Anderson, <a href="/A215590/b215590.txt">Table of n, a(n) for n = 1..1064</a>
%Y Cf. A215589.
%K nonn
%O 1,9
%A _Peter G. Anderson_, Aug 16 2012
