|
| |
|
|
A322915
|
|
Numbers k such that 301*2^k+1 is prime.
|
|
0
|
|
|
|
4, 184, 344, 352, 392, 1060, 2452, 7360, 9736, 10324, 21316, 22752, 27272, 27744, 28068, 55628, 72864, 88472, 95872, 124628, 218584, 424448, 517960, 880792, 1455620
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
LINKS
|
Table of n, a(n) for n=1..25.
Ray Ballinger, Proth Search Page
Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for 300 < k < 600
Y. Gallot, Proth.exe: Windows Program for Finding Large Primes
Wilfrid Keller, List of primes k.2^n - 1 for k < 300
Eric Weisstein's World of Mathematics, Proth Prime
Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime
|
|
|
MATHEMATICA
|
Select[Range[1000], PrimeQ[301*2^# + 1] &] (* Robert Price, Dec 30 2018 *)
|
|
|
CROSSREFS
|
Cf. A002255, A050527.
Sequence in context: A278693 A172018 A295285 * A221046 A024266 A174772
Adjacent sequences: A322912 A322913 A322914 * A322916 A322917 A322918
|
|
|
KEYWORD
|
nonn,hard,more
|
|
|
AUTHOR
|
Robert Price, Dec 30 2018
|
|
|
STATUS
|
approved
|
| |
|
|
