Specific heat coefficients for square lattice spin 1 Ising model.

Terms

a(0) =16a(1) =0a(2) =0a(3) =98a(4) =-96a(5) =0a(6) =1000a(7) =-1936a(8) =2064a(9) =5070a(10) =-19012a(11) =31950a(12) =9024a(13) =-152014a(14) =383616a(15) =-298186a(16) =-832320a(17) =3575922a(18) =-5486624a(19) =-1012506a(20) =27088992a(21) =-65115000a(22) =53200524a(23) =147217176a(24) =-608004040a(25) =947874280a(26) =189048900