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Low-temperature magnetization expansion for honeycomb net (Potts model, q=4).
1

%I #5 Mar 30 2012 16:48:52

%S 1,0,0,-4,-12,-60,-220,-936,-4092,-17840,-80868,-356172,-1640872,

%T -7433604,-34541160,-159080304,-743832276,-3469487112,-16321682424,

%U -76796957940,-363235185312,-1720415299660,-8176521038556

%N Low-temperature magnetization expansion for honeycomb net (Potts model, q=4).

%H I. Jensen, <a href="/A057394/b057394.txt">Table of n, a(n) for n = 0..30</a> (from link below)

%H I. Jensen, <a href="http://www.ms.unimelb.edu.au/~iwan/potts/series/hcp4mag.ser">More terms</a>

%Y Cf. A057374-A057405.

%K sign

%O 0,4

%A _N. J. A. Sloane_, Aug 30 2000