A299798 Ground state degeneracy of a periodic chain for angle theta = 3*Pi/2.

26, 72, 198, 570, 1641, 4725, 13605, 39174

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