Theta series of quadratic form with Gram matrix [ 3, 1, 0; 1, 3, 1; 0, 1, 4 ].

Terms

a(0) =1a(1) =0a(2) =0a(3) =4a(4) =4a(5) =2a(6) =2a(7) =4a(8) =2a(9) =2a(10) =4a(11) =6a(12) =6a(13) =2a(14) =2a(15) =2a(16) =12a(17) =2a(18) =0a(19) =14a(20) =6a(21) =2a(22) =2a(23) =4a(24) =10a(25) =6a(26) =2a(27) =14a(28) =8a(29) =0