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A284924
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a(n) is the least n-digit multiple of 5^n using the decimal digits {5, 6, 7, 8, 9} exclusively.
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1
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5, 75, 875, 6875, 96875, 796875, 6796875, 66796875, 966796875, 5966796875, 65966796875, 865966796875, 8865966796875, 68865966796875, 868865966796875, 8868865966796875, 78868865966796875, 578868865966796875, 7578868865966796875, 87578868865966796875
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OFFSET
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1,1
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LINKS
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EXAMPLE
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a(2) = 75 because 75 is divisible by 5^2 (25*3=75) and uses only digits in the 5-9 interval.
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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