Theta series of lattice Kappa_9.

Terms

a(0) =1a(1) =0a(2) =180a(3) =416a(4) =1620a(5) =3024a(6) =6404a(7) =9408a(8) =18876a(9) =20048a(10) =43224a(11) =45408a(12) =70462a(13) =82272a(14) =138408a(15) =121600a(16) =213972a(17) =210816a(18) =298620a(19) =310176a(20) =472464a(21) =391376a(22) =675168a(23) =604032a(24) =794524a(25) =808512a(26) =1208568a(27) =949568a(28) =1533048a(29) =1361328