Theta series of direct sum of 2 copies of D_4 lattice in powers of q^2.

Terms

a(0) =1a(1) =48a(2) =624a(3) =1344a(4) =5232a(5) =6048a(6) =17472a(7) =16512a(8) =42096a(9) =36336a(10) =78624a(11) =63936a(12) =146496a(13) =105504a(14) =214656a(15) =169344a(16) =337008a(17) =235872a(18) =472368a(19) =329280a(20) =659232a(21) =462336a(22) =831168a(23) =584064a(24) =1178688a(25) =756048a(26) =1371552a(27) =981120a(28) =1799808a(29) =1170720