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a(n) = floor((4-sqrt(5))*n); complement of A187339.
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%I #10 Dec 19 2021 15:21:40

%S 0,1,3,5,7,8,10,12,14,15,17,19,21,22,24,26,28,29,31,33,35,37,38,40,42,

%T 44,45,47,49,51,52,54,56,58,59,61,63,65,67,68,70,72,74,75,77,79,81,82,

%U 84,86,88,89,91,93,95,97,98,100,102,104,105,107,109,111

%N a(n) = floor((4-sqrt(5))*n); complement of A187339.

%H Robert Israel, <a href="/A187330/b187330.txt">Table of n, a(n) for n = 0..10000</a>

%F a(n)=floor((4-sqrt(5))n).

%p seq(floor((4-sqrt(5))*n),n=0..200); # _Robert Israel_, Dec 19 2021

%t Table[Floor[(4-5^(1/2))n], {n,0,120}]

%Y Cf. A187339.

%K nonn

%O 0,3

%A _Clark Kimberling_, Mar 08 2011