|
|
A217088
|
|
Numbers n such that (n^89-1)/(n-1) is prime.
|
|
7
|
|
|
2, 114, 159, 190, 234, 251, 436, 616, 834, 878, 1008, 1049, 1060, 1062, 1118, 1472, 1689, 1792, 2282, 2334, 2463, 2494, 2584, 2672, 2706, 2739, 2747, 2872, 3145, 3210, 3312, 3427, 3429, 3442, 3652, 3855, 4000, 4074, 4104, 4287, 4419, 4493, 4635, 4675, 4708, 4839
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
|
|
MATHEMATICA
|
Select[Range[2, 1000], PrimeQ[(#^89 - 1)/(# - 1)] &] (* T. D. Noe, Sep 26 2012 *)
|
|
PROG
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|