Coordination sequence for 18-dimensional cyclotomic lattice Z[zeta_27].

Terms

a(0) =1a(1) =18a(2) =171a(3) =1149a(4) =6147a(5) =27873a(6) =111243a(7) =400617a(8) =1324737a(9) =4074197a(10) =11768193a(11) =32170743a(12) =83746863a(13) =208651167a(14) =499620447a(15) =1153893249a(16) =2578177134a(17) =5587511355a(18) =11772651036a(19) =24163091856a(20) =48397837608a(21) =94751037108a(22) =181570410972a(23) =341010096552a(24) =628429016457