Theta series of direct sum of 3 copies of D_4 lattice.

Terms

a(0) =1a(1) =72a(2) =1800a(3) =17568a(4) =57096a(5) =225072a(6) =439200a(7) =1210176a(8) =1826568a(9) =4269096a(10) =5626800a(11) =11595744a(12) =13931424a(13) =26733168a(14) =30254400a(15) =54917568a(16) =58449672a(17) =102229776a(18) =106727400a(19) =178279200a(20) =178482096a(21) =295282944a(22) =289893600a(23) =463416768a(24) =445682592