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%I #13 Jul 07 2019 13:19:15
%S 2,4,8,10,16,22,25,26,28,35,40,44,47,50,58,65,68,70,79,80,86,92,94,95,
%T 101,109,112,113,128,131,136,140,142,143,149,152,154,169,170,179,182,
%U 184,187,196,205,208,217,218,227,235,236,260,262,263,266,278,283,284
%N Numbers n such that n111 is prime.
%H Harvey P. Dale, <a href="/A102248/b102248.txt">Table of n, a(n) for n = 1..1000</a>
%e At n=2, n111 = 2111 (prime).
%e At n=50, n111 = 50111 (prime).
%e At n=95, n111 = 95111 (prime).
%t Select[ Range[ 290], PrimeQ[ FromDigits[ Flatten[ IntegerDigits /@ { #, 1, 1, 1}]]] &] (* _Robert G. Wilson v_, Feb 21 2005 *)
%t Select[Range[300],PrimeQ[1000#+111]&] (* _Harvey P. Dale_, Jul 07 2019 *)
%o (PARI) is(n)=isprime(1000*n+111) \\ _Charles R Greathouse IV_, May 22 2017
%Y Cf. A024912.
%K nonn,base
%O 1,1
%A _Parthasarathy Nambi_, Feb 18 2005
%E More terms from _Robert G. Wilson v_, Feb 21 2005
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