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A093275
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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 75.
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0
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0, 75, 9750, 997500, 99975000, 9999750000, 999997500000, 99999975000000, 9999999750000000, 999999997500000000, 99999999975000000000, 9999999999750000000000, 999999999997500000000000, 99999999999975000000000000, 9999999999999750000000000000
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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(4) is 997500 because its length-4 substrings (9975, 9750, 7500) are all distinct and divisible by 75 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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