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0, 0, 1, 3, 5, 7, 9, 12, 16, 20, 24, 29, 34, 40, 46, 53, 60, 68, 77, 86, 95, 105, 116, 128, 140, 152, 165, 179, 193, 207, 221, 236, 252, 268, 284, 300, 317, 335, 353, 371, 390, 410, 430, 451, 472, 493, 515, 538, 561, 585, 609, 634, 660, 686, 712, 739, 767
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,4
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LINKS
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G. C. Greubel, Table of n, a(n) for n = 1..1000
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MATHEMATICA
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r = (1+Sqrt[2])/2;
a[n_] := Floor[Sum[FractionalPart[k*r], {k, 1, n}]]
Table[a[n], {n, 1, 90}] (* A194239 *)
s[n_] := Sum[a[k], {k, 1, n}]
Table[s[n], {n, 1, 100}] (* A194240 *)
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CROSSREFS
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Cf. A194239.
Sequence in context: A118015 A265057 A122643 * A265058 A265059 A349828
Adjacent sequences: A194237 A194238 A194239 * A194241 A194242 A194243
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KEYWORD
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nonn
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AUTHOR
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Clark Kimberling, Aug 20 2011
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STATUS
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approved
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