Theta series of laminated lattice LAMBDA_18.

Terms

a(0) =1a(1) =0a(2) =7398a(3) =175104a(4) =1820448a(5) =10506240a(6) =46589382a(7) =155022336a(8) =465542694a(9) =1157492736a(10) =2774172672a(11) =5765465088a(12) =11929117248a(13) =21932052480a(14) =40953956940a(15) =68918860800a(16) =119138987808a(17) =187615014912a(18) =305761893030a(19) =456635833344a(20) =710329749696