Theta series of D_5 lattice.

Terms

a(0) =1a(1) =40a(2) =90a(3) =240a(4) =200a(5) =560a(6) =400a(7) =800a(8) =730a(9) =1240a(10) =752a(11) =1840a(12) =1200a(13) =2000a(14) =1600a(15) =2720a(16) =1480a(17) =3680a(18) =2250a(19) =3280a(20) =2800a(21) =4320a(22) =2800a(23) =5920a(24) =2960a(25) =5240a(26) =3760a(27) =6720a(28) =4000a(29) =7920