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A024554 a(n) = sum of [ 1/{k*sqrt(5)} ], k = 1,2,...,n, where {x} := x - [ x ]. 2
4, 6, 7, 8, 13, 15, 16, 17, 25, 27, 28, 29, 43, 46, 47, 48, 124, 128, 130, 131, 132, 137, 139, 140, 141, 148, 150, 151, 152, 164, 167, 168, 169, 207, 210, 212, 213, 214, 218, 220, 221, 222, 228, 230, 231, 232, 242, 245, 246, 247, 272, 275, 276, 277, 278, 282, 284, 285, 286 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Clark Kimberling, Table of n, a(n) for n = 1..1000

MATHEMATICA

Table[Sum[Floor[1/FractionalPart[k*Sqrt[5]]], {k, 1, n}], {n, 1, 100}]

(* Clark Kimberling, Aug 16 2012 *)

CROSSREFS

Cf. A024555.

Sequence in context: A047291 A100349 A047507 * A078744 A024555 A213627

Adjacent sequences:  A024551 A024552 A024553 * A024555 A024556 A024557

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 28 05:09 EDT 2015. Contains 261118 sequences.