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A055561 Numbers n such that there are precisely 3 groups of order n. +0
10
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; listen)
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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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