

A119569


Number of nonisomorphic ConCos 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
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OFFSET

1,4


COMMENTS

A ConCos group is a group with a normal subgroup such that the cosets of this subgroup coincide with the conjugacy classes.


REFERENCES

A. S. Muktibodh, "Generalized ConCos grpups" Advances in Algebra, Proc. of ICM sattelite conf. Hong Kong, 2002, 434441.
A. S. Muktibodh, "ConCos groups" Review Bull. of Calcutta Math. Soc., Vol. 11, 5356, 2003


LINKS

Table of n, a(n) for n=1..22.


CROSSREFS

Sequence in context: A159829 A224763 A128515 * A318475 A066083 A128644
Adjacent sequences: A119566 A119567 A119568 * A119570 A119571 A119572


KEYWORD

nonn


AUTHOR

A. S. Muktibodh (amukti2000(AT)yahoo.com), Jun 01 2006


STATUS

approved



