Theta series of 28-dimensional unimodular lattice with no roots and a parity vector of norm 4.
A002519
Theta series of 28-dimensional unimodular lattice with no roots and a parity vector of norm 4.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =1728a(4) =106472a(5) =1734912a(6) =19335168a(7) =141575552a(8) =805208040a(9) =3725209088a(10) =14647517184a(11) =50579062848a(12) =156715230240a(13) =443680116992
External references
- oeis: A002519