Theta series of body-centered cubic (b.c.c.) lattice.

Terms

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