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A194244 Partial sums of A194243. 2
0, 0, 1, 2, 4, 7, 10, 14, 18, 23, 28, 33, 39, 45, 52, 59, 67, 76, 85, 95, 105, 116, 127, 138, 150, 162, 175, 188, 202, 217, 232, 248, 264, 281, 299, 317, 335, 354, 373, 393, 413, 433, 454, 475, 497, 520, 543, 566, 590, 614, 639, 665, 691, 717, 744, 771 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..56.

MATHEMATICA

r = 2-Sqrt[2];

a[n_] := Floor[Sum[FractionalPart[k*r], {k, 1, n}]]

Table[a[n], {n, 1, 90}]    (* A194243 *)

s[n_] := Sum[a[k], {k, 1, n}]

Table[s[n], {n, 1, 100}]   (* A194244 *)

CROSSREFS

Cf. A194243.

Sequence in context: A214048 A328659 A088236 * A014616 A184674 A227353

Adjacent sequences:  A194241 A194242 A194243 * A194245 A194246 A194247

KEYWORD

nonn

AUTHOR

Clark Kimberling, Aug 20 2011

STATUS

approved

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Last modified June 19 15:52 EDT 2021. Contains 345143 sequences. (Running on oeis4.)