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A116141
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Numbers k such that k concatenated with k-2 gives the product of two numbers which differ by 1.
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3
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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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6677714//6677712 = 8171728 * 8171729, where // denotes
concatenation.
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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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STATUS
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approved
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