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A008372 Number of orbits on points that are at n steps from 0 in D_7 lattice. 0
1, 1, 4, 8, 17, 30, 54, 86, 139, 209, 313, 448, 638 (list; graph; refs; listen; history; text; internal format)
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: A026353 A067773 A301145 * A005697 A215108 A307545

Adjacent sequences:  A008369 A008370 A008371 * A008373 A008374 A008375

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified August 5 00:15 EDT 2021. Contains 346456 sequences. (Running on oeis4.)