Theta series of quadratic form with Gram matrix [ 4, 1, 0; 1, 4, 2; 0, 2, 6 ].

Terms

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