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A074042 Numerator of Sum{1/A077800(k)|1<=k<=n}, denominator=A074043. 1
1, 8, 11, 92, 1117, 15676, 281507, 5603888, 167362597, 5328886012, 222844337147, 9761066934176, 583589647901149, 36052483750271224, 2587390775195626139, 190843701043052923832, 19418598540473717052037 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n)/A074043(n) -> Brun's constant (A065421).

LINKS

Table of n, a(n) for n=1..17.

CROSSREFS

Sequence in context: A289287 A006072 A196173 * A140478 A111021 A126814

Adjacent sequences:  A074039 A074040 A074041 * A074043 A074044 A074045

KEYWORD

nonn,frac

AUTHOR

Reinhard Zumkeller, Aug 13 2002

EXTENSIONS

Definition corrected by Max Alekseyev, May 10 2009

STATUS

approved

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Last modified November 14 08:13 EST 2018. Contains 317174 sequences. (Running on oeis4.)