Number of points of L1 norm 2n in root system version of E_8 lattice.

Terms

a(0) =1a(1) =0a(2) =128a(3) =0a(4) =2944a(5) =1024a(6) =31616a(7) =15360a(8) =199424a(9) =101376a(10) =877696a(11) =439296a(12) =3011200a(13) =1464320a(14) =8630144a(15) =4073472a(16) =21607936a(17) =9922560a(18) =48713856a(19) =21829632a(20) =101009792a(21) =44301312a(22) =195640192a(23) =84198400a(24) =358064384