A018237 Weight distribution of hypothetical [ 68,34,12 ] code derived from hypothetical [ 72,36,16 ] doubly-even self-dual code.

1, 0, 0, 0, 0, 0, 442, 14960, 174471, 1478048, 9546537, 46699952, 175078410, 509477760, 1160564636, 2081169376, 2949602799, 3312254400, 2949602799, 2081169376, 1160564636, 509477760, 175078410, 46699952, 9546537, 1478048, 174471, 14960, 442, 0, 0, 0, 0, 0, 1

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• fini
• full

References

• S. T. Dougherty and M Harada, Extremal and shadow extremal binary self-dual codes, preprint (Masaaki HARADA, harada(AT)math.okayama-u.ac.jp).

Links

• S. T. Dougherty, Publications
• S. T. Dougherty, A related length 68 code.
• S. T. Dougherty and M. Harada, New extremal self-dual codes of length 68, IEEE Transactions on Information Theory, 45 (1999), 2133-2136.

Crossrefs

Cf. A018236.

Extensions

More terms from Antonio G. Astudillo (afg_astudillo(AT)hotmail.com), Jun 15 2001

a(27)-a(28) corrected by Andrey Zabolotskiy, Nov 22 2021