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A108089 Number of Abelian Hv-groups of order n. 4
1, 10, 7926, 8028299905 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
REFERENCES
R. Bayon and N. Lygeros, Les hypergroupes et Hv-groupes d'ordre 3, submitted to Bulletin of the Greek Mathematical Society.
Th. Vougiouklis, The fundamental relation in hyperrings: The general hyperfield, Fourth Int. Congress Algebraic Hyperstructures and Appl. (AHA), 1991, pp. 203-211.
LINKS
N. Lygeros, Home Page
CROSSREFS
Sequence in context: A121787 A304437 A358920 * A229152 A125543 A291562
KEYWORD
hard,nonn
AUTHOR
Roman Bayon (roman.bayon(AT)wanadoo.fr), Jun 05 2005
STATUS
approved

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)