|
Search: id:A062574
|
|
|
| A062574 |
|
Numbers n such that k^n - (k-1)^n is prime, where k is 8. |
|
+0
1
|
|
| 7, 11, 17, 29, 31, 79, 113, 131, 139, 4357, 44029, 76213, 83663, 173687, 336419
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
Terms > 1000 are often only strong pseudo-primes.
All terms are prime. - Alexander Adamchuk (alex(AT)kolmogorov.com), Apr 27 2008
Three more terms 83663, 173687 and 336419 found by Jean-Louis Charton in 2004 and 2008
|
|
LINKS
|
Henri & Renaud Lifchitz, PRP Records.
|
|
CROSSREFS
|
Cf. A000043, A057468, A059801, A059802, A062572-A062666.
Cf. A016177 = 8^n - 7^n.
Sequence in context: A088981 A021014 A021013 this_sequence A063912 A078725 A019418
Adjacent sequences: A062571 A062572 A062573 this_sequence A062575 A062576 A062577
|
|
KEYWORD
|
nonn,hard
|
|
AUTHOR
|
Mike Oakes (Mikeoakes2(AT)aol.com), May 18 2001, May 19 2001
|
|
EXTENSIONS
|
Two more terms 44029 and 76213 found by Ananda Tallur & Jean-Louis Charton in 2003.
|
|
|
Search completed in 0.002 seconds
|
