Theta series of 27-dimensional unimodular lattice with root system A_1 with no parity vector of norm 3.
A002495
Theta series of 27-dimensional unimodular lattice with root system A_1 with no parity vector of norm 3.
Terms
- a(0) =1a(1) =0a(2) =2a(3) =2676a(4) =101118a(5) =1644784a(6) =16044996a(7) =110148864a(8) =584716268a(9) =2549726784a(10) =9515920164a(11) =31314134428a(12) =92917720104a(13) =252775518960a(14) =638328487880
External references
- oeis: A002495