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%I #10 Jan 04 2020 08:10:26
%S 1,3,23,27,39,41,97,101,123,183,201,311,411,519,551,557,867,1583,1607,
%T 2007,2207,2213,5999,8253,15573,23163,29939,36371,40403,61977,126861,
%U 127419,267911,299159,341511,367439,373847,614517,665639,1099061,1475337,1559073
%N Numbers k such that 371*2^k+1 is prime.
%H Jeppe Stig Nielsen, <a href="/A323010/b323010.txt">Table of n, a(n) for n = 1..44</a>
%H Ray Ballinger, <a href="http://www.prothsearch.com/index.html">Proth Search Page</a>
%H Ray Ballinger and Wilfrid Keller, <a href="http://www.prothsearch.com/riesel1a.html">List of primes k.2^n + 1 for 300 < k < 600</a>
%H Y. Gallot, <a href="http://www.utm.edu/research/primes/programs/gallot/index.html">Proth.exe: Windows Program for Finding Large Primes</a>
%H Wilfrid Keller, <a href="http://www.prothsearch.com/riesel2.html">List of primes k.2^n - 1 for k < 300</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ProthPrime.html">Proth Prime</a>
%H <a href="/index/Pri#riesel">Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime</a>
%t Select[Range[1000], PrimeQ[371*2^# + 1] &] (* _Robert Price_, Jan 01 2019 *)
%K nonn,hard
%O 1,2
%A _Robert Price_, Jan 01 2019
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