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A060679 Orders of non-cyclic groups. 3
4, 6, 8, 9, 10, 12, 14, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 34, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 66, 68, 70, 72, 74, 75, 76, 78, 80, 81, 82, 84, 86, 88, 90, 92, 93, 94, 96, 98, 99, 100, 102, 104, 105, 106, 108 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Numbers n such that x^n==1 (mod n) has solutions 2<=x<=n - Benoit Cloitre (benoit7848c(AT)orange.fr), May 10 2002

CROSSREFS

Complement of A003277.

Sequence in context: A117097 A077135 A110615 * A051234 A102554 A090419

Adjacent sequences:  A060676 A060677 A060678 * A060680 A060681 A060682

KEYWORD

nonn

AUTHOR

Ahmed Fares (ahmedfares(AT)my-deja.com), Apr 19 2001

EXTENSIONS

More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Jul 05 2001

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.