On the number of hamiltonian groups
Tomaž Pisanski, Boris Horvat and Gašper Jaklic
Math. Commun. Volume 10, Number 1, pp. 89-94, 2005. ISSN 13614681

Abstract

Finite hamiltonian groups are counted. The sequence of numbers of all groups of order n all whose subgroups are normal and the sequence of numbers of all groups of order less or equal to n all whose subgroups are normal are presented.

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