A028924 Maximal number of pairs of minimal vectors in n-dimensional laminated lattice.

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

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