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 A106103 #3 Mar 30 2012 17:26:15 %S A106103 3,37,43,53,73,83,337,347,349,353,359,367,373,379,383,389,397,433,439, %T A106103 443,463,563,593,643,653,673,683,733,739,743,773,839,853,863,883,937, %U A106103 953,983 %N A106103 Primes with minimal digit = 3. %t A106103 Select[Prime[Range[200]], Min[IntegerDigits[ # ]]==3&] %K A106103 nonn,base %O A106103 1,1 %A A106103 _Zak Seidov_, May 07 2005