login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A033468 Partial sums of sequence {1/(n^2+1)} (denominators). 0
1, 2, 10, 5, 85, 2210, 81770, 204425, 204425, 16762850, 1693047850, 51637959425, 1497500823325, 2995001646650, 590015324390050, 33335865828037825, 8567317517805721025, 17134635035611442050 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..17.

CROSSREFS

Sequence in context: A114232 A070730 A082192 * A047816 A095845 A105801

Adjacent sequences:  A033465 A033466 A033467 * A033469 A033470 A033471

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 10 19:11 EST 2016. Contains 279005 sequences.