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A116175
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Numbers k such that k concatenated with k+2 gives the product of two numbers which differ by 9.
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4
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1122070, 1538990, 3692998, 4422608, 1661985831086046580, 3508493742205242178, 5949206094811297768, 11324756194731856386028, 44020205992737767475178, 55147546334394567747178
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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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4422608//4422610 = 6650265 * 6650274, 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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