A015926 - OEIS

A015926

Positive integers n such that 2^n == 2^6 (mod n).

1, 2, 4, 6, 8, 10, 12, 16, 18, 24, 30, 31, 32, 36, 42, 48, 64, 66, 72, 78, 84, 90, 96, 102, 114, 126, 138, 144, 168, 174, 176, 186, 192, 210, 222, 234, 246, 252, 258, 282, 288, 318, 336, 354, 366, 390, 396, 402, 426, 438, 456, 474, 496, 498, 504, 510, 534, 546

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OFFSET

1,2

COMMENTS

The odd terms are given by A215610.

For all m, 2^A033981(m)-1 belongs to this sequence.

LINKS

T. D. Noe, Table of n, a(n) for n = 1..1000

OEIS Wiki, 2^n mod n

MATHEMATICA

Select[Range[1000], Mod[2^# - 2^6, #] == 0 &] (* T. D. Noe, Aug 17 2012 *)

CROSSREFS