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%I #10 Jun 15 2017 01:58:05
%S 0,99,990,9900990,99990,99990099990,9999990,999999009999990,999999990,
%T 9999999900999999990,99999999990,99999999990099999999990,9999999999990
%N a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 99.
%H Hans Havermann, <a href="/A093211/a093211.txt">Table of A093211-A093299</a>
%e a(4) is 9900990 because its length-4 substrings 9900, 9009, 0099, 0990) are all distinct and divisible by 99 and there is no larger number with this property
%Y Cf. A093211, A093212, ..., A093298.
%K base,nonn,more
%O 1,2
%A _Hans Havermann_, Mar 29 2004
%E a(9)-a(13) from _John Cerkan_, Jun 14 2017
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