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a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 73.
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%I #9 Jan 05 2018 18:33:10

%S 0,73,3657,9928,7000730003,880088330033,77707778880888,

%T 999999269999992,888888880777777770,33333333008888888800,

%U 3333333300077777777000,999999999928,77777777700073333333330003,8888888888008833333333330033,777777777770777888888888880888

%N a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 73.

%H Hans Havermann, <a href="/A093211/a093211.txt">Table of A093211-A093299</a>

%e a(5) is 7000730003 because its length-5 substrings (70007, 00073, 00730, 07300, 73000, 30003) are all distinct and divisible by 73 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(15) from _John Cerkan_, Jan 05 2018