A057376 Low-temperature specific heat expansion for square lattice (Potts model, q=3).

32, 0, 144, 196, 256, 1944, 1600, 7260, 24864, 21632, 164640, 265500, 657408, 2659956, 3730320, 16136700, 36340960, 84457380, 289921808, 592348808, 1815681792, 4836460000, 11458859776, 35005107420, 84260881600