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A093219
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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 19.
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0
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0, 19576, 722855133, 77714446555, 1100133003990098800855005, 99960944490466640699960, 444440433333037777707, 6666606077777070555550509999909011111010, 999999982, 11111101019999990909555555050577777707076666660606, 777777707773333333033344444440444
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OFFSET
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1,2
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COMMENTS
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Based on an Erich Friedman observation of a(3).
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LINKS
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EXAMPLE
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a(2) is 19576 because its length-2 substrings (19, 95, 57, 76) are all distinct and divisible by 19 and there is no larger number with this property.
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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