|
|
A319485
|
|
Numbers k such that 473*2^k+1 is prime.
|
|
0
|
|
|
1, 5, 37, 109, 2045, 49141, 54569, 65485, 148957, 174989, 180613, 231197, 479081, 1055381, 1769101
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
LINKS
|
|
|
MATHEMATICA
|
Select[Range[1000], PrimeQ[473*2^# + 1] &]
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,more,hard
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|