%I M0578 N0211 #28 Oct 14 2023 21:11:41

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

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

%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

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

%H B. Alspach, <a href="http://dx.doi.org/10.4153/CMB-1970-061-7">On point-symmetric tournaments</a>, Canad. Math. Bull., 13 (1970), 317-323. See t(n).

%H B. Alspach, <a href="/A002086/a002086.pdf">On point-symmetric tournaments</a>, Canad. Math. Bull., 13 (1970), 317-323. [Annotated copy] See t(n).

%H <a href="/index/To#tournament">Index entries for sequences related to tournaments</a>

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

%K nonn,more

%O 1,3

%A _N. J. A. Sloane_

%E Reference to Alspach (1970) corrected by _Andrew Howroyd_, Apr 28 2017