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%I #9 Dec 28 2017 20:20:15
%S 1,2,3,4,5,6,7,9,10,12,13,15,17,18,20,21,23,26,29,34,37,43,44,46,47,
%T 48,49,50,51,52,54,55,57,58,60,63,65,66,68,71,74,82,85,86,87,88,89,91,
%U 92,94,95,96,97,99,100,102,103,105,108,111,113,116,119,128,129,130,131,132,133,134,136,137,139,140,142,144,145,147,148,150
%N Positions of 1 in A190207; complement of A190208.
%H G. C. Greubel, <a href="/A190209/b190209.txt">Table of n, a(n) for n = 1..5500</a>
%t u = 7^(1/2); v = 1/u;
%t f[n_] := Floor[n*u + n*v] - Floor[n*u] - Floor[n*v]
%t t = Table[f[n], {n, 1, 120}] (* A190207 *)
%t Flatten[Position[t, 0]] (* A190208 *)
%t Flatten[Position[t, 1]] (* A190209 *)
%Y Cf. A190207, A190208.
%K nonn
%O 1,2
%A _Clark Kimberling_, May 05 2011
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