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A299798 Ground state degeneracy of a periodic chain for angle theta = 3*Pi/2. 1
26, 72, 198, 570, 1641, 4725, 13605, 39174 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Table of n, a(n) for n=3..10.

Yun-Tak Oh, Hosho Katsura, Hyun-Yong Lee, Jung Hoon Han, Proposal of a spin-one chain model with competing dimer and trimer interactions, arXiv:1709.01344 [cond-mat.str-el], 2017.

CROSSREFS

Cf. A005248, A197723, A299797.

Sequence in context: A063304 A199849 A116300 * A039377 A043200 A043980

Adjacent sequences: A299795 A299796 A299797 * A299799 A299800 A299801

KEYWORD

nonn,more

AUTHOR

Michael De Vlieger, Feb 19 2018

STATUS

approved

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Last modified February 7 22:58 EST 2023. Contains 360132 sequences. (Running on oeis4.)