Theta series of extremal 3-modular even lattice in dimension 20.

A034620

Theta series of extremal 3-modular even lattice in dimension 20.

Terms

    a(0) =1a(1) =0a(2) =540a(3) =21120a(4) =286740a(5) =2132352a(6) =10878300a(7) =44012160a(8) =146719620a(9) =417436800a(10) =1093070376a(11) =2572283520a(12) =5570541780a(13) =11568510720a(14) =22583167200a(15) =41422741632a(16) =75113550180a(17) =129368897280a(18) =214148621340

External references