Theta series of P_{12a} packing.

Terms

a(0) =1a(1) =0a(2) =840a(3) =2560a(4) =26376a(5) =30720a(6) =204960a(7) =168960a(8) =843528a(9) =593920a(10) =2625840a(11) =1605120a(12) =6435744a(13) =3717120a(14) =14118720a(15) =7633920a(16) =26992392a(17) =14192640a(18) =49806120a(19) =24752640a(20) =82451376