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A055561
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Numbers n such that there are precisely 3 groups of order n.
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9
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75, 363, 609, 867, 1183, 1265, 1275, 1491, 1587, 1725, 1805, 2067, 2175, 2373, 2523, 3045, 3525, 3685, 3795, 3975, 4137, 4205, 4335, 4425, 4895, 5019, 5043, 5109, 5901, 5915, 6171, 6225, 6627, 6675, 6699, 7935, 8025, 8427, 8475, 8855, 9429, 9537, 10275
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| Hans Ulrich Besche, Bettina Eick, E. A. O'Brien, A Millenium Project: Constructing Small Groups, International Journal of Algebra and Computation, Vol. 12, No 5 (2002), 623-644.
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LINKS
| H.-U. Besche, The Small Groups library
Gordon Royle, Numbers of Small Groups
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CROSSREFS
| Cf. A000001, A003277, A054395-A054397.
Sequence in context: A174685 A158742 A158765 * A193252 A015223 A129625
Adjacent sequences: A055558 A055559 A055560 * A055562 A055563 A055564
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KEYWORD
| nonn
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AUTHOR
| Christian G. Bower (bowerc(AT)usa.net), May 25 2000; Nov 12 2003; Feb 17 2006
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