%I A024903
%S A024903 1,3,5,9,11,15,23,29,33,35,39,41,45,51,53,59,69,75,81,83,89,93,95,111,
%T A024903 113,119,123,135,141,143,149,159,161,165,171,179,183,185,189,195,209,
%U A024903 213,221,225,231,233,239,243,251,261,269,273,279,299,305,321,335,341
%N A024903 Numbers n such that 7*n-4 is prime.
%F A024903 a(n) = A033868(n-1)-1 = A089033(n-1)+1 = A090614(n-1)*2+1.
%Y A024903 A045437 gives primes, A090613 gives prime index.
%Y A024903 Cf. A033868, A045437, A089033, A090613, A090614.
%Y A024903 Sequence in context: A161830 A151922 A104635 this_sequence A018486 A024414 
               A072391
%Y A024903 Adjacent sequences: A024900 A024901 A024902 this_sequence A024904 A024905 
               A024906
%K A024903 nonn
%O A024903 1,2
%A A024903 Clark Kimberling (ck6(AT)evansville.edu)