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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
OFFSET
1,1
CROSSREFS
This is the complement of A051234.
Except for the number 1 this sequence contains A003277.
Sequence in context: A320055 A072697 A102553 * A328603 A304713 A319327
KEYWORD
nonn,more
AUTHOR
Sharon Sela (sharonsela(AT)hotmail.com), Apr 09 2002
STATUS
approved