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A283328 Number of compatible Parke-Taylor factors for the graph obtained by combining one triangle with a regular n-gon. 0
6, 42, 264, 1920, 16284, 154098, 1607296 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..8.

Freddy Cachazo, Humberto Gomez, Computation of Contour Integrals on M_{0,n}, arXiv preprint, 2015. Also JHEP, 2016; doi:10.1007/JHEP04(2016)108. See Table 1.

CROSSREFS

Sequence in context: A246938 A158797 A218060 * A343363 A331706 A074429

Adjacent sequences:  A283325 A283326 A283327 * A283329 A283330 A283331

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Mar 17 2017

STATUS

approved

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Last modified October 19 21:40 EDT 2021. Contains 348095 sequences. (Running on oeis4.)