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 A088628 #16 Jul 19 2015 01:33:22
%S A088628 11,127,1123,1423,112543,1124653,1234657,112345687,1123465789,
%T A088628 10123457689,10111123456879,1011111223457689,10111112233469857,
%U A088628 10111111122334456879,1011111111223344557689,10111111112233445569867
%N A088628 Smallest prime using all the digits of first n numbers. If necessary, extra digits can be used.
%C A088628 Conjecture: There exists a number k such that for all m > k, m not == 0 or 2 (mod 3), a(m) does not use any extra digit.
%H A088628 Ray Chandler, <a href="/A088628/b088628.txt">Table of n, a(n) for n = 1..369</a> (terms < 10^1000)
%H A088628 Ray Chandler, <a href="/A088628/a088628.txt">Mathematica program for A088628</a>
%e A088628 a(5) = 112543 which is the smallest prime containing digits 1 to 5.
%e A088628 a(10) = 10123457689 is the smallest prime containing digits of 1,2,3,4,5,6,7,8,9 and 10.
%t A088628 For a(11): d = {1, 0, 1, 1, 1, 1, 1, 2, 2, 3, 4}; a = Map[ FromDigits, Join[ d, # ] & /@ Permutations[{5, 6, 7, 8, 9}]]; Min[ Select[ a, PrimeQ[ # ] & ]] (* _Robert G. Wilson v_, Nov 06 2003 *)
%t A088628 (* See above link for another program *)
%K A088628 base,nonn
%O A088628 1,1
%A A088628 _Amarnath Murthy_, Oct 21 2003
%E A088628 a(8) and a(9) from _Robert G. Wilson v_, Oct 22 2003
%E A088628 a(10) from _Ray Chandler_, Nov 01 2003
%E A088628 a(11) through a(16) from _Robert G. Wilson v_, Nov 06 2003