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 A194225 [sum{(k/7) : 1<=k<=n}], where [ ]=floor, ( )=fractional part. 2
 0, 0, 0, 1, 2, 3, 3, 3, 3, 3, 4, 5, 6, 6, 6, 6, 6, 7, 8, 9, 9, 9, 9, 9, 10, 11, 12, 12, 12, 12, 12, 13, 14, 15, 15, 15, 15, 15, 16, 17, 18, 18, 18, 18, 18, 19, 20, 21, 21, 21, 21, 21, 22, 23, 24, 24, 24, 24, 24, 25, 26, 27, 27, 27, 27, 27, 28, 29, 30, 30, 30, 30, 30, 31 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 LINKS Table of n, a(n) for n=1..74. MATHEMATICA r = 1/7; a[n_] := Floor[Sum[FractionalPart[k*r], {k, 1, n}]] Table[a[n], {n, 1, 90}] (* A194225 *) s[n_] := Sum[a[k], {k, 1, n}] Table[s[n], {n, 1, 100}] (* A194226 *) CROSSREFS Cf. A194226. Sequence in context: A200264 A104406 A080344 * A025782 A120506 A327041 Adjacent sequences: A194222 A194223 A194224 * A194226 A194227 A194228 KEYWORD nonn AUTHOR Clark Kimberling, Aug 19 2011 STATUS approved

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Last modified June 4 12:12 EDT 2023. Contains 363128 sequences. (Running on oeis4.)