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%I
%S 0,1,2,3,4,6,7,8,9,11,12,13,14,16,17,18,19,21,23,24,25,26,28,29,30,31,
%T 33,34,35,36,38,39,40,41,43,44,46,47,48,50,51,52,53,55,56,57,58,60,61,
%U 62,63,65,66,67,69,70,72,73,74,75,77,78,79,80,82,83,84,85,87,88,89,90
%N a(n) = Sum_{k>=0} floor(n*(r^k)), where r = sqrt(5)-2.
%e a(5) = 6 = 5 + floor(5*r) + floor(5*r^2) + floor(5*r^3) + ...
%Y Cf. A005187.
%K nonn
%O 0,3
%A _Clark Kimberling_, Aug 07 2003
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