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A006250 Number of hypertournaments on n elements under signed bijection.
(Formerly M0362) 		0
1, 1, 1, 2, 2, 6, 17, 69 (list; graph; refs; listen; history; internal format)
OFFSET

1,4

REFERENCES

D. E. Knuth, ``Axioms and hulls,'' Lect. Notes Comp. Sci., Vol. 606.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Index entries for sequences related to tournaments

CROSSREFS

Sequence in context: A134295 A184845 A062833 * A006249 A019575 A178882

Adjacent sequences:  A006247 A006248 A006249 * A006251 A006252 A006253

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 14 23:44 EST 2012. Contains 205689 sequences.