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A334554 Number of Eulerian orientations in the n-cocktail party graph. 0
1, 2, 38, 6936, 14747896, 394274110160, 138804098924751280 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

An Eulerian orientation of a graph is an orientation of the edges such that every vertex has in-degree equal to out-degree.

The corresponding sequence for the complete graph on 2n+1 vertices is A007079.

LINKS

Table of n, a(n) for n=1..7.

Eric Weisstein's World of Mathematics, Cocktail Party Graph

CROSSREFS

Cf. A007079, A297383.

Sequence in context: A246484 A288027 A184994 * A348162 A132396 A263374

Adjacent sequences:  A334551 A334552 A334553 * A334555 A334556 A334557

KEYWORD

nonn,more

AUTHOR

Andrew Howroyd, May 22 2020

STATUS

approved

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Last modified December 8 11:31 EST 2021. Contains 349596 sequences. (Running on oeis4.)