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Positive integers n such that 2^n == 2^10 (mod n).
9

%I #17 Sep 22 2016 22:24:42

%S 1,2,4,6,7,8,10,12,16,24,28,30,32,34,48,50,64,70,73,96,110,112,128,

%T 130,150,170,190,192,230,256,290,310,330,370,384,410,430,442,448,470,

%U 512,530,532,550,590,610,670,710

%N Positive integers n such that 2^n == 2^10 (mod n).

%C The odd terms are given by A215612.

%C For all m, 2^A033982(m)-1 belongs to this sequence.

%H T. D. Noe, <a href="/A015932/b015932.txt">Table of n, a(n) for n = 1..1000</a>

%H OEIS Wiki, <a href="/wiki/2^n mod n">2^n mod n</a>

%t Select[Range[1000], Mod[2^# - 2^10, #] == 0 &] (* _T. D. Noe_, Aug 17 2012 *)

%Y Contains A208158 as a subsequence.

%Y Cf. A015919, A015921, A015922, A015924, A015925, A015926, A015927, A015929, A015931, A015935, A015937.

%K nonn

%O 1,2

%A _Robert G. Wilson v_

%E Edited by _Max Alekseyev_, Jul 30 2011