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A293931 Number of circularly chained n-tuples of 2 X 2 alternating sign matrices. 1

%I

%S 2,10,14,42,82,214,478,1186,2786

%N Number of circularly chained n-tuples of 2 X 2 alternating sign matrices.

%H 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 <a href="http://arxiv.org/abs/1611.03387">arXiv:1611.03387</a>.

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

%K nonn,more

%O 1,1

%A _N. J. A. Sloane_, Oct 19 2017

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Last modified July 26 10:35 EDT 2021. Contains 346294 sequences. (Running on oeis4.)