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A093269
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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 69.
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0
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0, 69, 966, 9936, 44436777, 888444222111, 2222007555500, 3333300366666006, 555550050888880080, 99999009006666600600, 99999999978, 666666666060999999999090, 88888808008085555550500505, 6666666660600033333333303000, 555555550055550222222220022220
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OFFSET
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1,2
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LINKS
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EXAMPLE
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a(5) is 44436777 because its length-5 substrings (44436, 44367, 43677, 36777) are all distinct and divisible by 69 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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