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A245761
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Numbers with a maximal multiplicative persistence of 1 in any base.
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0
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OFFSET
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1,3
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LINKS
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EXAMPLE
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12 is in the sequence since the persistence of 12 is at most 1 in any base. I.e. it takes at most one step to go from 12 to a single digit in any base, e.g., in base 2 we have 1100 -> 0. In base 5 we have 22 -> 4. In bases 12 and above the initial number is already a single digit.
This sequence is complete - there are no other terms. - Alois P. Heinz, Jul 31 2014
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CROSSREFS
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KEYWORD
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nonn,full,fini
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AUTHOR
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STATUS
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approved
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