Theta series of Borcherds' 27-dimensional unimodular lattice T_27.
A002434
Theta series of Borcherds' 27-dimensional unimodular lattice T_27.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =1640a(4) =119574a(5) =1497600a(6) =16733184a(7) =108081792a(8) =588805308a(9) =2544826368a(10) =9516533760a(11) =31328289720a(12) =92876121704a(13) =252846217728a(14) =638250227712
External references
- oeis: A002434