A238839 List of Coxeter numbers of the 24 even unimodular lattices in dimension 24.

0, 2, 3, 4, 5, 6, 6, 7, 8, 9, 10, 10, 12, 12, 13, 14, 16, 18, 18, 22, 25, 30, 30, 46

Offset

1,2

Comments

These lattices consist of the Leech lattice and the 23 Niemeier lattices.

Links

Table of n, a(n) for n=1..24.

J. H. Conway and N. J. A. Sloane, Sphere Packings, Lattices and Groups, 3rd. ed., 1993. Table 16.1, p. 407.

Hans-Volker Niemeier, Definite quadratische Formen der Dimension 24 und Diskriminante 1, J. Number Theory 5 (1973), 142--178. MR0316384 (47 #4931).

Crossrefs

A239048 is a subsequence.

Sequence in context: A099848 A082287 A331267 * A269169 A248148 A210062

Adjacent sequences: A238836 A238837 A238838 * A238840 A238841 A238842

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Mar 18 2014

Status

approved