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%I #8 Jan 08 2018 16:32:48
%S 0,55,660550,5500550,6666055550,55550055550,66666605555550,
%T 555555005555550,666666660555555550,5555555500555555550,
%U 6666666666055555555550,55555555550055555555550,66666666666605555555555550,555555555555005555555555550,666666666666660555555555555550
%N a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 55.
%H Hans Havermann, <a href="/A093211/a093211.txt">Table of A093211-A093299</a>
%e a(3) is 660550 because its length-3 substrings (660, 605, 055, 550) are all distinct and divisible by 55 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(9)-a(15) from _John Cerkan_, Jan 08 2018