login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A127106
Numbers n such that n^2 divides 6^n-1.
42
1, 5, 1555, 9673655, 187159211791705, 776119592182705
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,2
COMMENTS
Subsequence of
A014946
.
LINKS
Table of n, a(n) for n=1..6.
MATHEMATICA
Select[Range[20000], IntegerQ[(PowerMod[6, #, #^2 ]-1)/#^2 ]&]
CROSSREFS
Cf.
A127100
,
A127101
,
A127102
,
A127103
,
A127104
,
A127105
,
A127107
,
A127092
,
A014946
.
Sequence in context:
A165628
A119747
A177906
*
A165877
A366830
A123658
Adjacent sequences:
A127103
A127104
A127105
*
A127107
A127108
A127109
KEYWORD
hard
,
more
,
nonn
AUTHOR
Alexander Adamchuk
, Jan 05 2007
EXTENSIONS
Two more terms from
Max Alekseyev
, May 05 2010
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 September 18 01:35 EDT 2024. Contains 375995 sequences. (Running on oeis4.)