|
|
A213176
|
|
Numbers n such that (13^n + 4^n)/17 is prime.
|
|
2
|
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
All terms are prime.
a(11) > 10^5.
|
|
LINKS
|
|
|
MATHEMATICA
|
Select[ Prime[ Range[1, 100000] ], PrimeQ[ (13^# + 4^#)/17 ]& ]
|
|
PROG
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
hard,nonn,more
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|