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 A106106 #8 Mar 30 2012 18:37:59 %S A106106 67,677,769,967,6679,6689,6779,6869,6899,6967,6977,6997,7669,7687, %T A106106 7699,7867,8669,8677,8689,8699,8867,8969,9677,9679,9689,9697,9767, %U A106106 9769,9967,66697,66797,66877,66889,66977,67679,67699,67777,67789,67867,67967 %N A106106 Primes with minimal digit = 6. %t A106106 Select[Prime[Range[1800]], Min[IntegerDigits[ # ]]==6&] %K A106106 nonn,base %O A106106 1,1 %A A106106 _Zak Seidov_, May 07 2005 %E A106106 More terms from _Vincenzo Librandi_, Apr 17 2010