%I A008402
%S A008402 1,55,883,6085,26461,86491,232975,545833,1151065,2235871,
%T A008402 4065931,7004845,11535733,18284995,28048231,41818321,
%U A008402 60815665,86520583,120707875,165483541,223323661,297115435
%N A008402 Crystal ball sequence for {E_6}* lattice.
%D A008402 M. O'Keeffe, Coordination sequences for lattices, Zeit. f. Krist., 210 
               (1995), 905-908.
%H A008402 T. D. Noe, <a href="b008402.txt">Table of n, a(n) for n=0..1000</a>
%H A008402 <a href="Sindx_Cor.html#crystal_ball">Index entries for crystal ball 
               sequences</a>
%H A008402 J. H. Conway and N. J. A. Sloane, Low-Dimensional Lattices VII: Coordination 
               Sequences, Proc. Royal Soc. London, A453 (1997), 2369-2389 (<a href="http:/
               /www.research.att.com/~njas/doc/ldl7.txt">Abstract</a>, <a href="http:/
               /www.research.att.com/~njas/doc/ldl7.pdf">pdf</a>, <a href="http:/
               /www.research.att.com/~njas/doc/ldl7.ps">ps</a>).
%p A008402 G.f.: (1+48*x+519*x^2+1024*x^3+519*x^4+48*x^5+x^6)/(1-x)^7;
%Y A008402 Sequence in context: A132155 A053138 A027784 this_sequence A134291 A157096 
               A017771
%Y A008402 Adjacent sequences: A008399 A008400 A008401 this_sequence A008403 A008404 
               A008405
%K A008402 nonn,nice
%O A008402 0,2
%A A008402 N. J. A. Sloane (njas(AT)research.att.com).