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!)
A131842 First differences of A007097. 1
1, 1, 2, 6, 20, 96, 582, 4672, 47330, 595680, 9088942, 164702708, 3483060060, 84705352206, 2339732572312, 72635597193630, 2511496037777828, 95965484116697442, 4024669707807276532, 184149183428282681030, 9143767110701151656280 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

REFERENCES

L. Longeri, Towards understanding nature and the aesthetics of prime numbers, https://www.longeri.org/prime/nature.html [Broken link, but leave the URL here for historical reasons]

LINKS

Table of n, a(n) for n=0..20.

CROSSREFS

Sequence in context: A078564 A079576 A079570 * A020095 A026991 A049379

Adjacent sequences:  A131839 A131840 A131841 * A131843 A131844 A131845

KEYWORD

nonn

AUTHOR

Luis Longeri (longeri.nature(AT)gmail.com), Oct 04 2007

EXTENSIONS

a(17) and a(18) found by David Baugh using a program by Xavier Gourdon and Andrey V. Kulsha, Oct 25 2007

a(19) found by Andrey V. Kulsha using a program by Xavier Gourdon, Sep 29 2011

a(20) found by Andrey V. Kulsha using a program by Xavier Gourdon, Oct 02 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 4 05:11 EST 2016. Contains 278748 sequences.