Theta series of dual-extremal lattice of level 2 and dimension 20 (DualExtremal(20,2)a).
A151985
Theta series of dual-extremal lattice of level 2 and dimension 20 (DualExtremal(20,2)a).
Terms
- a(0) =1a(1) =0a(2) =120a(3) =15360a(4) =67320a(5) =1511424a(6) =2607840a(7) =31242240a(8) =34565880a(9) =299950080a(10) =258557904a(11) =1825551360a(12) =1329059040a(13) =8209797120a(14) =5342308800a(15) =29764233216a(16) =17699303160a(17) =91810160640a(18) =51292022040a(19) =249822489600a(20) =131871366864
External references
- oeis: A151985