Magnetization for honeycomb lattice.

Terms

a(0) =1a(1) =0a(2) =0a(3) =-2a(4) =-6a(5) =-18a(6) =-54a(7) =-168a(8) =-534a(9) =-1732a(10) =-5706a(11) =-19038a(12) =-64176a(13) =-218190a(14) =-747180a(15) =-2574488a(16) =-8918070a(17) =-31036560a(18) =-108457488a(19) =-380390574a(20) =-1338495492a(21) =-4723664566a(22) =-16714545822a(23) =-59286878556a(24) =-210755970528a(25) =-750721297056