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 A119893 #1 Sep 29 2006 03:00:00 %S A119893 67,89,139,157,179,193,197,199,229,269,283,337,359,373,379,409,449, %T A119893 463,467,487,557,571,577,593,607,643,647,661,683,719,733,739,751,757, %U A119893 773,809,823,827,829,863,881,883,919,937,953,971,991,1039,1093,1097,1129 %N A119893 Prime soloists for which the sum of the digits is another prime soloist. %H A119893 L. Stevens, <a href="http://www.lucstevens.com/Primeensembles.htm">Prime ensembles</a> %e A119893 67 is in the sequence because (1) it is a prime soloist and (2) the sum of its digits 6+7=13 is another prime soloist ( see A119889) %Y A119893 Cf. A119889. %K A119893 base,nonn %O A119893 1,1 %A A119893 Luc Stevens (lms022(AT)yahoo.com), May 28 2006