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%I #15 Jan 05 2018 15:28:02
%S 0,77,924,7700770,3303388088,99992299992,88888803333330,
%T 777777007777770,999999924,7777777700777777770,3333333303388888888088,
%U 99999999992299999999992,88888888888803333333333330,777777777777007777777777770,999999999999924
%N a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 77.
%H Hans Havermann, <a href="/A093211/a093211.txt">Table of A093211-A093299</a>
%e a(4) is 7700770 because its length-4 substrings (7700, 7007, 0077, 0770) are all distinct and divisible by 77 and there is no larger number with this property.
%Y Cf. A093211, A093212, ..., A093299.
%K base,nonn
%O 1,2
%A _Hans Havermann_, Mar 29 2004
%E a(11)-a(12) from _John Cerkan_, Jul 17 2017
%E a(13)-a(15) from _John Cerkan_, Jan 05 2018
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