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A275007 Numbers n such that 2^n == sigma(n) (mod n). 0
1, 12, 286, 5978, 111136, 283584, 339379, 1102652, 8830498, 27952828, 30442612, 84638560, 90619592, 101907952, 175917947 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Numbers n such that A015910(n) = A054024(n). - Michel Marcus, Dec 11 2016
LINKS
EXAMPLE
12 is a term because 2^12 == sigma(12) (mod 12).
PROG
(PARI) is(n)=Mod(2, n)^n==sigma(n);
CROSSREFS
Sequence in context: A009604 A154669 A079519 * A262733 A296736 A077424
KEYWORD
nonn,more
AUTHOR
Altug Alkan, Dec 11 2016
STATUS
approved

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Last modified June 23 07:16 EDT 2024. Contains 373629 sequences. (Running on oeis4.)