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%I #33 Sep 08 2022 08:45:00
%S 1,3,4,15,18,21,27,37,45,55,58,69,73,87,171,201,232,307,375,567,882,
%T 2869,3364,4071,4825,15328,20341,26641,36703,57291,62973,67347,141253,
%U 155637,165957,230629,295791,343144,372841,454378,604747,690973,736084,852381
%N Numbers k such that 285*2^k + 1 is prime.
%H Jeppe Stig Nielsen, <a href="/A053359/b053359.txt">Table of n, a(n) for n = 1..47</a>
%H Ray Ballinger and Wilfrid Keller, <a href="http://www.prothsearch.com/riesel1.html">List of primes k.2^n + 1 for k < 300</a>
%H Wilfrid Keller, <a href="http://www.prothsearch.com/riesel2.html">List of primes k.2^n - 1 for k < 300</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[5*10^3], PrimeQ[285*2^# + 1] &] (* _G. C. Greubel_, May 25 2018 *)
%o (PARI) is(n)=ispseudoprime(285*2^n+1) \\ _Charles R Greathouse IV_, Jun 13 2017
%o (Magma) [n: n in [1..300] | IsPrime(285*2^n+1)]; // _G. C. Greubel_, May 25 2018
%K hard,nonn
%O 1,2
%A _N. J. A. Sloane_, Dec 29 1999
%E a(34)-a(46) from the Ray Ballinger and Wilfrid Keller link by _Robert Price_, Dec 22 2018
%E Terms moved from Data section to b-file, and additional term appended to b-file, by _Jeppe Stig Nielsen_, May 31 2020
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