This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A129748 #5 Aug 23 2017 16:10:24 %S A129748 1,3,7,11,13,19,37,39,61,73,89,107,109,113,117,147,153,159,171,173, %T A129748 207,241,253,307,311,329,347,419,429,461,481,491,497,509,523,529,539, %U A129748 543,559,613,617,631,651,691,701,703,731,737,741,753,799,809,813,823,827 %N A129748 Numbers n such that the sum of the first n primes with the final digit 9 is prime. %F A129748 a(n)=primes in A030433 added to obtain A129081(n) %t A129748 Position[Accumulate[Select[Prime[Range[5000]],Last[ IntegerDigits[#]] == 9&]],_?PrimeQ]//Flatten (* _Harvey P. Dale_, Aug 23 2017 *) %Y A129748 Cf. A129081; A000040; A030433. %K A129748 easy,base,less,nonn %O A129748 1,2 %A A129748 _Tomas Xordan_, May 14 2007