OFFSET
0,3
REFERENCES
J. H. Conway and N. J. A. Sloane, Low-dimensional lattices II: Subgroups of GL(n,Z), Proc. Royal Soc. A 419 (1988), 29-68.
F. J. MacWilliams and N. J. A. Sloane, The Theory of Error-Correcting Codes, Elsevier/North Holland, 1977, p. 695.
LINKS
G. Nebe, E. M. Rains and N. J. A. Sloane, Self-Dual Codes and Invariant Theory, Springer, Berlin, 2006.
EXAMPLE
A_0 = 1, A_6 = 156, A_9 = 494, A_{12} = 78.
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
N. J. A. Sloane, May 07 2005
EXTENSIONS
It would be good to have a set of generators (e.g. a MAGMA program to produce this code).
It would be good to also have the weight distribution of the dual code.
STATUS
approved