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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 98.
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%I #19 Jan 03 2018 19:43:16

%S 0,98,5882,225488,55566444,1111328888,5505052880808,99999984,

%T 888800808666600606,9999999968,4444444040466666660606,999999999936,

%U 22222222200226666666660066,99999999999970,111111111001100666666666006600,55555555550505506666666666060660

%N a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 98.

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

%e a(4) is 225488 because its length-4 substrings (2254, 2548, 5488) are all distinct and divisible by 98 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(13) from _John Cerkan_, Jun 14 2017

%E a(14)-a(16) from _John Cerkan_, Jan 03 2018