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A028924 Maximal number of pairs of minimal vectors in n-dimensional laminated lattice. 0
0, 1, 3, 6, 12, 20, 36, 63, 120, 136, 168, 219, 324, 453, 711, 1170, 2160, 2673, 3699, 5334, 8700, 13860, 24948, 46575, 98280, 98328, 98424, 98571, 98868, 99253, 100023, 101346, 104160 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

REFERENCES

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 174.

LINKS

Table of n, a(n) for n=0..32.

CROSSREFS

A002336 / 2.

Sequence in context: A028926 A038577 A028925 * A034738 A054064 A246866

Adjacent sequences:  A028921 A028922 A028923 * A028925 A028926 A028927

KEYWORD

nonn,hard,more

AUTHOR

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

EXTENSIONS

Entry for n=31 corrected by C. Muses.

STATUS

approved

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Last modified August 8 02:45 EDT 2020. Contains 336290 sequences. (Running on oeis4.)