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%I #10 Feb 15 2021 02:20:06
%S 1,2,3,5,6,7,9,10,11,13,14,15,17,18,19,20,21,22,23,24,25,26,27,28,29,
%T 30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,
%U 53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,73,74
%N Numbers m such that Sum_{k=1..m} (<1/2 + k*r> - <k*r>) > 0, where r=sqrt(5) and < > denotes fractional part.
%C See A194368.
%t r = Sqrt[5]; c = 1/2;
%t x[n_] := Sum[FractionalPart[k*r], {k, 1, n}]
%t y[n_] := Sum[FractionalPart[c + k*r], {k, 1, n}]
%t t1 = Table[If[y[n] < x[n], 1, 0], {n, 1, 500}];
%t Flatten[Position[t1, 1]] (* empty *)
%t t2 = Table[If[y[n] == x[n], 1, 0], {n, 1, 400}];
%t Flatten[Position[t2, 1]] (* A194374 *)
%t t3 = Table[If[y[n] > x[n], 1, 0], {n, 1, 100}];
%t Flatten[Position[t3, 1]] (* A194375 *)
%Y Cf. A194368, A194375.
%K nonn
%O 1,2
%A _Clark Kimberling_, Aug 23 2011
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