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A173242 Partial sums of A027642. 0
1, 3, 9, 10, 40, 41, 83, 84, 114, 115, 181, 182, 2912, 2913, 2919, 2920, 3430, 3431, 4229, 4230, 4560, 4561, 4699, 4700, 7430, 7431, 7437, 7438, 8308, 8309, 22631, 22632, 23142, 23143, 23149, 23150, 1942340, 1942341, 1942347, 1942348, 1955878 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
a(n) = Sum_{i=0..n} A027642(i).
PROG
(PARI) a(n) = sum(k=0, n, denominator(bernfrac(k))); \\ Michel Marcus, Aug 28 2020
CROSSREFS
Cf. A027642.
Sequence in context: A136852 A031115 A004669 * A335030 A335029 A228450
KEYWORD
nonn
AUTHOR
Jonathan Vos Post, Feb 13 2010
EXTENSIONS
a(19) corrected by Georg Fischer, Aug 28 2020
STATUS
approved

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Last modified March 29 05:16 EDT 2024. Contains 371264 sequences. (Running on oeis4.)