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 A106102 #6 Mar 30 2012 18:49:39 %S A106102 2,23,29,223,227,229,233,239,257,263,269,277,283,293,523,727,823,827, %T A106102 829,929,2237,2239,2243,2267,2269,2273,2287,2293,2297,2333,2339,2347, %U A106102 2357,2377,2383,2389,2393,2399,2423,2437,2447,2459,2467,2473,2477,2539 %N A106102 Primes with smallest digit 2. %t A106102 Select[Prime[Range[200]], Min[IntegerDigits[ # ]]==2&] %K A106102 nonn,base,easy %O A106102 1,1 %A A106102 _Zak Seidov_, May 07 2005 %E A106102 More terms from _Stefan Steinerberger_, May 19 2007