A002087 Number of point-symmetric tournaments with 2n+1 nodes.

1, 1, 2, 3, 4, 6, 16, 16, 30

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• more

References

• N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
• N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Links

• B. Alspach, On point-symmetric tournaments, Canad. Math. Bull., 13 (1970), 317-323. See t(n).
• B. Alspach, On point-symmetric tournaments, Canad. Math. Bull., 13 (1970), 317-323. [Annotated copy] See t(n).
• Index entries for sequences related to tournaments

Crossrefs

Cf. A002086, A049288 (note that A002086, A002087, A049288 are distinct sequences).

Extensions

Reference to Alspach (1970) corrected by Andrew Howroyd, Apr 28 2017