Theta series of D_12 lattice.

Terms

a(0) =1a(1) =264a(2) =7944a(3) =64416a(4) =253704a(5) =825264a(6) =1938336a(7) =4437312a(8) =8118024a(9) =15653352a(10) =24832944a(11) =42517728a(12) =61903776a(13) =98021616a(14) =133522752a(15) =201364416a(16) =259776264a(17) =374842512a(18) =471023592a(19) =653690400a(20) =793078704a(21) =1082704128a(22) =1279397088a(23) =1699194816a(24) =1980797856a(25) =2578950264a(26) =2949559536