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A119569
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Number of non-isomorphic Con-Cos groups of order n.
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2
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1, 1, 1, 2, 1, 2, 1, 5, 2, 2, 1, 3, 1, 2, 1, 5, 1, 4, 1, 3, 2, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,4
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COMMENTS
| A Con-Cos group is a group with a normal subgroup such that the cosets of this subgroup coincide with the conjugacy classes.
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REFERENCES
| A. S. Muktibodh, "Generalized Con-Cos grpups" Advances in Algebra, Proc. of ICM sattelite conf. Hong Kong, 2002, 434-441.
A. S. Muktibodh, "Con-Cos groups" Review Bull. of Calcutta Math. Soc., Vol. 11, 53-56, 2003
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CROSSREFS
| Sequence in context: A032021 A159829 A128515 * A066083 A128644 A201733
Adjacent sequences: A119566 A119567 A119568 * A119570 A119571 A119572
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KEYWORD
| nonn
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AUTHOR
| A. S. Muktibodh (amukti2000(AT)yahoo.com), Jun 01 2006
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