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A119569
Number of non-isomorphic Con-Cos groups of order n.
2
1, 1, 1, 2, 1, 2, 1, 5, 2, 2, 1, 3, 1, 2, 1, 5, 1, 4, 1, 3, 2, 2
OFFSET
1,4
COMMENTS
A Con-Cos group is a group with a normal subgroup such that the cosets of this subgroup coincide with the conjugacy classes.
REFERENCES
A. S. Muktibodh, "Con-Cos groups" Review Bull. of Calcutta Math. Soc., Vol. 11, 53-56, 2003
LINKS
A. S. Muktibodh, Generalized Con-Cos groups, Advances in Algebra, Proc. of ICM satellite conf. Hong Kong, 2002, 434-441.
CROSSREFS
Sequence in context: A224763 A128515 A332489 * A318475 A066083 A128644
KEYWORD
nonn,more
AUTHOR
A. S. Muktibodh (amukti2000(AT)yahoo.com), Jun 01 2006
STATUS
approved