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0, 1, 2, 4, 6, 9, 12, 15, 19, 23, 28, 34, 40, 46, 53, 60, 67, 75, 84, 93, 102, 112, 123, 134, 146, 159, 172, 185, 199, 214, 229, 245, 261, 278, 295, 313, 331, 350, 369, 388, 408, 428, 449, 471, 493, 515, 538, 561, 584, 608, 633, 658, 683, 709, 736, 763
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,3
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LINKS
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MATHEMATICA
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r = E;
a[n_] := Floor[Sum[FractionalPart[k*r], {k, 1, n}]]
Table[a[n], {n, 1, 90}] (* A194200 *)
s[n_] := Sum[a[k], {k, 1, n}]
Table[s[n], {n, 1, 100}] (* A194201 *)
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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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