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A104174 Numerator of the fractional part of a harmonic number. 1
0, 1, 5, 1, 17, 9, 83, 201, 2089, 2341, 551, 2861, 64913, 90653, 114677, 274399, 5385503, 2022061, 42503239, 9276623, 3338549, 3573693, 87368107, 276977179, 7281378067, 7624597867, 71595952403, 74464289303, 2239777822987 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

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

Eric Weisstein's World of Mathematics, Book Stacking Problem.

FORMULA

a(n) = frac(sum(1/k, k=1..n))

MATHEMATICA

h[n_] := Sum[1/k, {k, 1, n}]

Table[Numerator[FractionalPart[h[n]]], {n, 1, 30}]

(* Clark Kimberling, Aug 13 2012 *)

CROSSREFS

Cf. A075135.

Sequence in context: A066787 A058352 A121755 * A050400 A008971 A151335

Adjacent sequences:  A104171 A104172 A104173 * A104175 A104176 A104177

KEYWORD

nonn

AUTHOR

Georg Haass (geha5001(AT)stud.uni-saarland.de), Mar 10 2005

STATUS

approved

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Last modified April 25 10:11 EDT 2017. Contains 285379 sequences.