A008371 Number of orbits on points that are at n steps from 0 in D_6 lattice.

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

Offset

0,3

Links

Table of n, a(n) for n=0..12.

J. H. Conway and N. J. A. Sloane, Low-Dimensional Lattices VII: Coordination Sequences, Proc. Royal Soc. London, A453 (1997), 2369-2389 (pdf).

Crossrefs

Sequence in context: A299894 A339026 A025197 * A368985 A334198 A358730

Adjacent sequences: A008368 A008369 A008370 * A008372 A008373 A008374

Keyword

nonn

Author

N. J. A. Sloane and J. H. Conway

Status

approved