A003505 - OEIS

%I M3008 #36 Dec 26 2021 20:44:45

%S 1,1,1,0,3,15,203,3785

%N Number of simple tournaments with n nodes.

%C Why is this different from A280772, which has the same name? Possibly this is an erroneous version of A280772, in which case it should be marked as "dead", but not deleted since the OEIS policy is to include published but erroneous sequences to serve as pointers to the correct versions. - _N. J. A. Sloane_, Jan 18 2017

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

%H Vladimír Müller, Jaroslav Nešetřil, Jan Pelant, <a href="http://dx.doi.org/10.1016/0012-365X(75)90104-1">Either tournaments or algebras?</a>, Discrete Math. 11 (1975), 37-66. See table 1 on page 65.

%H Vladimír Müller, Jaroslav Nešetřil, Jan Pelant, <a href="/A003505/a003505.pdf">Either tournaments or algebras?</a>, Discrete Math. 11 (1975), 37-66. [Annotated copy] See table 1 on page 65.

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

%Y See A280772 for another version.

%K nonn,more

%O 1,5

%A _N. J. A. Sloane_