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 A119615 #2 Mar 31 2012 20:08:01 %S A119615 2,3,5,7,11,13,17,19,29,37,41,43,47,53,59,61,67,73,79,83,89,97,101, %T A119615 103,107,109,127,137,139,149,151,157,163,173,179,181,191,193,197,199, %U A119615 211,223,227,229,233,239,241,251,257,263,269,277,281,283,307,311,313,331 %N A119615 Write down the primes 2,3,5,... but omit any prime (such as 23 or 31 or 71 ...) that has appeared as a string earlier in the sequence. %C A119615 Inspired by Hannah Rollman and her sequence A048991. %e A119615 23 is omitted since we see "2,3" at the beginning of the sequence; 15647 is omitted because 5641, 5647 appear earlier in the sequence. %Y A119615 Cf. A048991. %K A119615 base,easy,nonn %O A119615 0,1 %A A119615 _Gil Broussard_, Jun 05 2006