Theta series of D_4 lattice with respect to edge.

Terms

a(0) =2a(1) =8a(2) =12a(3) =16a(4) =26a(5) =24a(6) =28a(7) =48a(8) =36a(9) =40a(10) =64a(11) =48a(12) =62a(13) =80a(14) =60a(15) =64a(16) =96a(17) =96a(18) =76a(19) =112a(20) =84a(21) =88a(22) =156a(23) =96a(24) =114a(25) =144a(26) =108a(27) =144a(28) =160a(29) =120