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A132591 Number of hyperrings of order n. +0
1
1, 63, 33277642 (list; graph; listen)
OFFSET

1,2

REFERENCES

R. Bayon and N. Lygeros, The Hyperrings of Order 3.

Th. Vougiouklis, Hyperstructures and their Representations. Hadronic Press, (1994).

Th. Vougiouklis, The fundamental relation in hyperrings, the general hyperfield. Fourth INT. Congress on AHA (1990), pp. 203-211.

CROSSREFS

Cf. A108089, A132590.

Sequence in context: A136677 A135812 A069452 this_sequence A116232 A094496 A010112

Adjacent sequences: A132588 A132589 A132590 this_sequence A132592 A132593 A132594

KEYWORD

hard,nonn,bref

AUTHOR

Roman Bayon (roman.bayon(AT)gmail.com), Aug 28 2007

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Last modified December 4 15:51 EST 2008. Contains 151308 sequences.


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