login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A062644
Numbers k such that 78^k - 77^k is prime.
0
7, 5749
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,1
COMMENTS
Terms > 1000 are often only strong pseudoprimes.
a(3) > 10^5. -
Robert Price
, Oct 04 2014
LINKS
Table of n, a(n) for n=1..2.
PROG
(PARI) is(n)=ispseudoprime(78^n-77^n) \\
Charles R Greathouse IV
, Jun 13 2017
CROSSREFS
Cf.
A000043
,
A057468
,
A059801
,
A059802
,
A062572
-
A062666
.
Sequence in context:
A219893
A243780
A246519
*
A103174
A203693
A125036
Adjacent sequences:
A062641
A062642
A062643
*
A062645
A062646
A062647
KEYWORD
nonn
,
hard
,
bref
,
more
AUTHOR
Mike Oakes
, May 18 2001, May 19 2001
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 August 20 02:39 EDT 2024. Contains 375310 sequences. (Running on oeis4.)