login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A123117 A063865(4n-3). 3
2, 8, 70, 722, 8220, 99820, 1265204, 16547220, 221653776, 3025553180, 41931984034, 588491482334, 8346638665718, 119447839104366, 1722663727780132, 25011714460877474, 365301750223042066, 5363288299585278800 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Ray Chandler, Table of n, a(n) for n = 1..835 (terms < 10^1000)
FORMULA
a(n) = 2*A104456(n).
CROSSREFS
Sequence in context: A332637 A239843 A099729 * A330676 A062733 A180687
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jul 07 2008
STATUS
approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 19 06:32 EDT 2024. Contains 370953 sequences. (Running on oeis4.)