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Number of orbits on points that are at n steps from 0 in D_6 lattice.
0

%I #11 Oct 09 2016 09:34:16

%S 1,1,4,8,16,27,47,72,112,163,235,325,448

%N Number of orbits on points that are at n steps from 0 in D_6 lattice.

%H 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://neilsloane.com/doc/Me220.pdf">pdf</a>).

%K nonn

%O 0,3

%A _N. J. A. Sloane_ and _J. H. Conway_