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A273970
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Numbers x such that there exist a pair y, n with x < y, x != n and y != n that makes {x,y,n,n} an amicable multiset.
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3
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695520, 753480, 1113840, 1136520, 1784160, 2313360, 2898720, 3140280, 3865680, 3960600, 4272840, 4500720, 4626720, 6126120, 6167700, 7197960, 7442820, 7731360, 8177400, 8498700, 8784720, 8828820, 8920800, 8966160, 9124920, 9232860, 9664200, 9729720
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OFFSET
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1,1
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COMMENTS
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We call the multiset {x,y,n,n} amicable iff sigma(x) = sigma(y) = sigma(n) = x+y+n+n. For the n values, see A273969. For the y values, see A273971.
If the condition x<y were dropped, the terms from A259306 would also belong here.
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LINKS
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EXAMPLE
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sigma(695520) = sigma(803040) = sigma(702240) = 695520 + 803040 + 702240 + 702240.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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