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A293932 Number of circularly chained n-tuples of 3 X 3 alternating sign matrices. 0
20, 140, 3861, 7436 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Heuer, Dylan, Chelsey Morrow, Ben Noteboom, Sara Solhjem, Jessica Striker, and Corey Vorland. "Chained permutations and alternating sign matrices - Inspired by three-person chess." Discrete Mathematics 340, no. 12 (2017): 2732-2752. Also arXiv:1611.03387.
CROSSREFS
Sequence in context: A105939 A054389 A253003 * A071816 A263960 A190067
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Oct 19 2017
STATUS
approved

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Last modified February 24 11:15 EST 2024. Contains 370303 sequences. (Running on oeis4.)