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A194410
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Numbers m such that Sum_{k=1..m} (<1/2 + k*r> - <k*r>) > 0, where r=Pi and < > denotes fractional part.
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4
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1, 2, 3, 4, 5, 9, 10, 11, 17, 95, 101, 102, 103, 107, 108, 109, 110, 111, 115, 116, 117, 123, 215, 221, 222, 223, 229, 335
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OFFSET
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1,2
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COMMENTS
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LINKS
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MATHEMATICA
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r = Pi; c = 1/2;
x[n_] := Sum[FractionalPart[k*r], {k, 1, n}]
y[n_] := Sum[FractionalPart[c + k*r], {k, 1, n}]
t1 = Table[If[y[n] < x[n], 1, 0], {n, 1, 100}];
Flatten[Position[t1, 1]] (* A194408 *)
t2 = Table[If[y[n] == x[n], 1, 0], {n, 1, 1500}];
Flatten[Position[t2, 1]] (* A194409 *)
t3 = Table[If[y[n] > x[n], 1, 0], {n, 1, 1500}];
Flatten[Position[t3, 1]] (* A194410 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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