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A115963 Numerator of Sum_{i=1..n} 1/prime(i)^3. 5
1, 35, 4591, 1601713, 2141141003, 4716413174591, 23198819007792583, 159253748925534977797, 1938552948676080555065099, 47290471293028435532185602511, 1409101231790431848106470385672201 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Denominators = A115964. See also: A024451 Numerator of Sum_{i=1..n} 1/prime(i). A002110 Primorial [denominator of Numerator of Sum_{i=1..n} 1/prime(i)]. A061015 Numerator of Sum_{i=1..n} 1/prime(i)^2.
LINKS
FORMULA
a(n) = Numerator of Sum_{i=1..n} 1/A000040(i)^3.
EXAMPLE
1/8, 35/216, 4591/27000, 1601713/9261000, 2141141003/12326391000, 4716413174591/27081081027000.
CROSSREFS
Sequence in context: A210314 A294851 A266053 * A212024 A231914 A202067
KEYWORD
easy,frac,nonn
AUTHOR
Jonathan Vos Post, Mar 14 2006
STATUS
approved

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Last modified May 28 19:55 EDT 2024. Contains 372919 sequences. (Running on oeis4.)