login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A293930 Number of circularly chained n X n alternating sign matrices. 2
1, 2, 20, 40, 3430, 6860 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..6.

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.

Sequence in context: A073214 A293356 A269669 * A194999 A280436 A266842

Adjacent sequences:  A293927 A293928 A293929 * A293931 A293932 A293933

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Oct 19 2017

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 25 13:05 EDT 2021. Contains 346290 sequences. (Running on oeis4.)