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%I #7 Dec 15 2023 12:49:28
%S 1,18,171,1149,6147,27873,111243,400617,1324737,4074197,11768193,
%T 32170743,83746863,208651167,499620447,1153893249,2578177134,
%U 5587511355,11772651036,24163091856,48397837608,94751037108,181570410972,341010096552,628429016457
%N Coordination sequence for 18-dimensional cyclotomic lattice Z[zeta_27].
%H M. Beck and S. Hosten, <a href="http://arxiv.org/abs/math/0508136">Cyclotomic polytopes and growth series of cyclotomic lattices</a>, arXiv math.CO/0508136.
%H <a href="/index/Rec#order_18">Index entries for linear recurrences with constant coefficients</a>, signature (18, -153, 816, -3060, 8568, -18564, 31824, -43758, 48620, -43758, 31824, -18564, 8568, -3060, 816, -153, 18, -1).
%F G.f.: (x^3+1)^9/(1-x)^18.
%K nonn
%O 0,2
%A _N. J. A. Sloane_, Mar 18 2007
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