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Positions of 0 in A190201; complement of A190203.
3

%I #8 Dec 28 2017 03:38:00

%S 1,5,7,9,10,13,14,16,17,18,19,23,26,27,30,32,34,35,36,39,43,45,47,48,

%T 51,52,54,56,57,60,61,64,65,68,70,73,74,77,79,81,83,85,86,89,90,92,94,

%U 95,98,99,102,103,106,108,111,112,115,117,119,120,121,123,124,128,130,132,133,136,137,139,140,141,146,149,150,153,155,157

%N Positions of 0 in A190201; complement of A190203.

%H G. C. Greubel, <a href="/A190202/b190202.txt">Table of n, a(n) for n = 1..5550</a>

%t u = 5^(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}] (*A190201*)

%t Flatten[Position[t, 0]] (*A190202*)

%t Flatten[Position[t, 1]] (*A190203*)

%Y Cf. A190201, A190203.

%K nonn

%O 1,2

%A _Clark Kimberling_, May 05 2011