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A346179
Number of nonisomorphic vertex-transitive tournaments of order 2n-1.
0
1, 1, 1, 2, 3, 4, 6, 16, 16, 30, 110, 94, 214, 694, 586, 1096, 3280, 5472, 7286, 25206, 26216, 49940, 196624, 182362, 407856, 907116
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,4
COMMENTS
The circulant tournaments A049288 are included.
Up to 49 vertices, non-circulant vertex-transitive tournaments occur on 21, 25, 27, 39, 45 and 49 vertices.
LINKS
Table of n, a(n) for n=1..26.
Brendan McKay, vertex-transitive tournaments
CROSSREFS
If the automorphism group contains a full-length cycle, the tournament is circulant and is counted by A049288.
Cf. A060747.
Sequence in context: A337129 A002087 A049288 * A102946 A026094 A285191
Adjacent sequences: A346176 A346177 A346178 * A346180 A346181 A346182
KEYWORD
nonn,hard,more
AUTHOR
Brendan McKay, Jul 09 2021
STATUS
approved

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Last modified November 7 04:35 EST 2024. Contains 377523 sequences.
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