Low-temperature specific heat expansion for hexagonal lattice (Potts model, q=3).

Terms

a(0) =72a(1) =0a(2) =0a(3) =0a(4) =600a(5) =726a(6) =-1440a(7) =0a(8) =7056a(9) =8100a(10) =-13824a(11) =-20808a(12) =94176a(13) =119130a(14) =-196800a(15) =-291942a(16) =917664a(17) =1986924a(18) =-2389248a(19) =-5092500a(20) =10788960a(21) =26041338a(22) =-21643104a(23) =-81270876a(24) =111771360a(25) =369058596a(26) =-215519232a(27) =-1109316384