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A008337 Number of orbits on points that are at n steps from 0 in E_8 lattice. 0
1, 1, 3, 5, 10, 15, 27, 40, 63, 91, 134, 188, 265 (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).

G. Nebe and N. J. A. Sloane, Home page for this lattice

CROSSREFS

Sequence in context: A132302 A097513 A045513 * A077285 A072523 A054473

Adjacent sequences:  A008334 A008335 A008336 * A008338 A008339 A008340

KEYWORD

nonn,hard

AUTHOR

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

STATUS

approved

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Last modified November 18 18:20 EST 2018. Contains 317324 sequences. (Running on oeis4.)