%I A123928
%S A123928 1,3,11,27,29,31,33,49,73,77,79,123,149,157,167,169,189,207,211,219,223,
%T A123928 227,241,261,313,319,323,329,333,357,359,417,419,423,441,463,477,491,
%U A123928 499,513,517,553,559,573,637,667,707,709,711,729,747,757,777,813,893
%N A123928 Numbers n such that the sum of the first n primes with the final digit 
               1 is prime (the number of consecutive prime numbers in A030430 that 
               should be added to obtain A129077(x)).
%F A123928 a(n)=primes in A030430 added to obtain A129077(n)
%e A123928 a(3)=11 because 11 is the number of consecutive prime numbers in A030430 
               that must be added to obtain A129077(3).
%Y A123928 Cf. A030430; A129077; A129078; A129079; A129081; A000040.
%Y A123928 Sequence in context: A051925 A011942 A101612 this_sequence A164897 A164845 
               A024194
%Y A123928 Adjacent sequences: A123925 A123926 A123927 this_sequence A123929 A123930 
               A123931
%K A123928 easy,base,nonn,less
%O A123928 1,2
%A A123928 Tomas Xordan (xordan.tom(AT)gmail.com), May 13 2007