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A275007
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Numbers n such that 2^n == sigma(n) (mod n).
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0
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1, 12, 286, 5978, 111136, 283584, 339379, 1102652, 8830498, 27952828, 30442612, 84638560, 90619592, 101907952, 175917947
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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12 is a term because 2^12 == sigma(12) (mod 12).
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PROG
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(PARI) is(n)=Mod(2, n)^n==sigma(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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