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A293931 Number of circularly chained n-tuples of 2 X 2 alternating sign matrices. 1
2, 10, 14, 42, 82, 214, 478, 1186, 2786 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..9.

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

Cf. A005130, A293178, A293179, A293180, A293930, A059475.

Sequence in context: A190043 A217681 A102340 * A047043 A244268 A233454

Adjacent sequences:  A293928 A293929 A293930 * A293932 A293933 A293934

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Oct 19 2017

STATUS

approved

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Last modified June 23 17:39 EDT 2021. Contains 345402 sequences. (Running on oeis4.)