login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A187487 Numerator of n minus n-th harmonic number 0
0, 1, 7, 23, 163, 71, 617, 1479, 15551, 17819, 221209, 246619, 3538687, 3873307, 4209643, 9094961, 166145857, 59239139, 1199057081, 254554945, 89778475, 94716499, 2292289173, 7218943253, 189040347533 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Denominators are in A002805.

LINKS

Table of n, a(n) for n=1..25.

FORMULA

a(n) = n - Sum_{i = 1 .. n} 1/i

a(n) = Sum_{i = 2 .. n} (i - 1)/i

MATHEMATICA

Numerator[Table[n - HarmonicNumber[n], {n, 25}]]

CROSSREFS

Cf. A001008, numerators of the harmonic numbers. Adding this sequence to that sequence gives A102928.

Sequence in context: A158954 A056205 A099051 * A299643 A034192 A050918

Adjacent sequences:  A187484 A187485 A187486 * A187488 A187489 A187490

KEYWORD

frac,easy,nonn

AUTHOR

Alonso del Arte, Mar 10 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 13 16:27 EDT 2021. Contains 342936 sequences. (Running on oeis4.)