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A116621 Positive integers n such that 13^n == 1 (mod n). 10
1, 2, 3, 4, 6, 8, 9, 12, 14, 16, 18, 20, 24, 27, 28, 32, 36, 40, 42, 48, 54, 56, 60, 64, 68, 72, 80, 81, 84, 96, 98, 100, 108, 112, 120, 126, 128, 136, 140, 144, 160, 162, 168, 180, 183, 192, 196, 200, 204, 216, 220, 224, 240, 243, 252, 256, 272, 280, 288, 294, 300, 320 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Cf. A116609, A116611, A116620.

Sequence in context: A028929 A018731 A113961 * A036407 A145807 A122380

Adjacent sequences:  A116618 A116619 A116620 * A116622 A116623 A116624

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Feb 19 2006

EXTENSIONS

1 prepended by Max Alekseyev (maxale(AT)gmail.com), Jun 28 2011

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Last modified February 17 16:00 EST 2012. Contains 206050 sequences.