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A368480
Orders k such that there exists a group of order k with automorphism group of odd order.
0
OFFSET
1,2
LINKS
Peter Hegarty and Desmond MacHale, Minimal Odd Order Automorphism Groups, Journal of Group Theory, 13 (2009), 243-255; arXiv:0905.0993 [math.GR], 2009.
EXAMPLE
a(1)=1 since the trivial group has automorphism group of order 1. a(2)=2 since C_2 has automorphism group of order 1.
CROSSREFS
Sequence in context: A004813 A342294 A089981 * A365179 A028487 A073476
KEYWORD
nonn,bref,more,hard
AUTHOR
Robin Jones, Dec 26 2023
STATUS
approved