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%I #3 Mar 30 2012 16:50:15
%S 1,840,128562,7763336,255132738,5364747528,79712283826,895653687240,
%T 7994897516802,58853795985096,367855940946354,1997994939493896,
%U 9608869067978306,41551899915146376,163639215007657266,593194295878065224,1997255020667905026,6294016203637516872
%N Coordination sequence for D_21 lattice
%K nonn
%O 0,2
%A _N. J. A. Sloane_, May 28 2005