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A069161 Numbers n such that no group of order n can be a central factor. 0
2, 3, 5, 7, 11, 13, 15, 17, 19, 23, 29, 31, 33, 35, 37, 41, 43, 45, 47, 51, 53, 59, 61 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..23.

CROSSREFS

This is the complement of A051234.

Except for the number 1 this sequence contains A003277.

Sequence in context: A320055 A072697 A102553 * A304713 A319327 A319319

Adjacent sequences:  A069158 A069159 A069160 * A069162 A069163 A069164

KEYWORD

nonn,more

AUTHOR

Sharon Sela (sharonsela(AT)hotmail.com), Apr 09 2002

STATUS

approved

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Last modified December 11 15:03 EST 2018. Contains 318049 sequences. (Running on oeis4.)