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A090091
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Number of groups of order 3^n.
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10
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OFFSET
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0,3
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REFERENCES
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G. Bagnera, La composizione dei Gruppi finiti il cui grado e la quinta potenza di un numero primo, Ann. Mat. Pura Appl. (3), 1 (1898), 137-228.
Hans Ulrich Besche, Bettina Eick and E. A. O'Brien, A Millennium Project: Constructing Small Groups, International Journal of Algebra and Computation, Vol. 12, No 5 (2002), 623-644.
W. Burnside, Theory of Groups of Finite Order, Dover, NY, 1955.
Marcus du Sautoy, Symmetry: A Journey into the Patterns of Nature, HarperCollins, 2008, p. 96.
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LINKS
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FORMULA
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EXAMPLE
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G.f. = 1 + x + 2*x^2 + 5*x^3 + 15*x^4 + 67*x^5 + 504*x^6 + 9310*x^7 + ...
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MAPLE
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with(GroupTheory): seq(NumGroups(3^n), n=0..8); # Muniru A Asiru, Oct 17 2018
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PROG
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CROSSREFS
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KEYWORD
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nonn,hard,more
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AUTHOR
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Eamonn O'Brien (obrien(AT)math.auckland.ac.nz), Jan 22 2004
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EXTENSIONS
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STATUS
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approved
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