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

A028996

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

Terms

    a(0) =1a(1) =0a(2) =12a(3) =12a(4) =12a(5) =12a(6) =24a(7) =24a(8) =36a(9) =36a(10) =48a(11) =0a(12) =72a(13) =24a(14) =48a(15) =60a(16) =84a(17) =48a(18) =84a(19) =48a(20) =96a(21) =72a(22) =12a(23) =60a(24) =144a(25) =84a(26) =120a(27) =84a(28) =144a(29) =72

External references