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%I #14 Dec 26 2019 05:06:37
%S 15,99,153,183,267,285,357,479,603,833,843,879,1107,1125,1187,1235,
%T 1289,1295,1683,1757,1763,1833,1863,1905,1929,1943,1977,2609,2699,
%U 2709,2933,2973,2975,2999,3027,3135,3183,3237,3347,3375,3485,3503,3507,3555,3647
%N Numbers k such that little googol - k is prime.
%C A little googol = 2^100.
%C The sequence is finite with between 1.8559e29 and 1.8562e29 members. Under the Riemann Hypothesis, it has between 1.8560140176089e29 and 1.8560140176096e29 members. - _Charles R Greathouse IV_, Jul 30 2007
%H Amiram Eldar, <a href="/A108254/b108254.txt">Table of n, a(n) for n = 1..10000</a>
%t Select[Range[4000], PrimeQ[2^100 - #] &] (* _Amiram Eldar_, Dec 26 2019 *)
%o (PARI) g(n) = forstep(x=1,n,2,if(isprime(2^100-x),print1(x",")))
%Y Cf. A108253.
%K nonn,fini
%O 1,1
%A _Cino Hilliard_, Jun 18 2005
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