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A223613
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Numbers k whose abundance is 24: sigma(k) - 2*n = 24.
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2
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OFFSET
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1,1
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COMMENTS
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a(6) > 10^12.
a(6) <= 36893488040044920832. Every number of the form 2^(j-1)*(2^j - 25), where 2^j - 25 is prime, is a term. - Jon E. Schoenfield, Jun 02 2019
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LINKS
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EXAMPLE
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For k = 82364907508, sigma(k) - 2*k = 24.
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PROG
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(PARI) for(n=1, 10^8, if(sigma(n)-2*n==24, print1(n ", ")))
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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