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A002086 Related to the enumeration of symmetric tournaments.
(Formerly M0939 N0353)
+0
1
1, 1, 2, 4, 4, 6, 16, 16, 30, 88, 94, 208, 472, 586, 1096, 3280, 5472, 7286, 21856, 26216, 49940, 175104, 182362, 399480, 1048576, 1290556, 3355456, 7456600, 9256396, 17895736, 59660288 (list; graph; listen)
OFFSET

1,3

REFERENCES

B. Alspach, On point-symmetric tournaments, Canad. Math. Bull., 13 (1970), 317-323.

CROSSREFS

Sequence in context: A008133 A022471 A081238 this_sequence A039830 A096612 A104510

Adjacent sequences: A002083 A002084 A002085 this_sequence A002087 A002088 A002089

KEYWORD

nonn

AUTHOR

njas

EXTENSIONS

More terms from Roderick J. Fletcher, Oct 15 1996 (yylee(AT)mail.ncku.edu.tw)

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.


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