%I #8 Aug 03 2017 14:41:46
%S 0,68,30680,9010204080,11016660622202,888080444040222020,
%T 555050088808006660600,9999009088880080,666663636888884848,
%U 1111100110222220022044444004408888800880,7777777722244444444666,888888887880222222226220,55555555050504444444404040
%N a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 34.
%H Hans Havermann, <a href="/A093211/a093211.txt">Table of A093211-A093299</a>
%e a(3) is 30680 because its length-3 substrings (306, 068, 680) are all distinct and divisible by 34 and there is no larger number with this property.
%Y Cf. A093211, A093212, ..., A093299.
%K base,nonn
%O 1,2
%A _Hans Havermann_, Mar 28 2004
%E a(11)-a(13) from _John Cerkan_, Aug 03 2017