Theta series of a.c.c. lattice.

Terms

a(0) =1a(1) =0a(2) =10a(3) =4a(4) =0a(5) =8a(6) =12a(7) =0a(8) =26a(9) =0a(10) =0a(11) =8a(12) =20a(13) =0a(14) =32a(15) =8a(16) =0a(17) =16a(18) =10a(19) =0a(20) =40a(21) =8a(22) =0a(23) =16a(24) =28a(25) =0a(26) =40a(27) =4a(28) =0a(29) =8