A069646 Weight distribution of [97,49,15] binary quadratic-residue (or QR) code.

1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4656, 23862, 14841, 65960, 190120, 741468, 3375988, 11662504, 40893648, 126088748, 360406410, 998048520, 2614461952, 6536154880, 15589859400, 35337014640, 76345991760, 157463608005

Offset

0,16

Comments

Taken from the Tjhai-Tomlinson web site.

Links

Georg Fischer, Table of n, a(n) for n = 0..97

C. J. Tjhai and Martin Tomlinson, Weight Distributions of Quadratic Residue and Quadratic Double Circulant Codes over GF(2) [broken link]

Trieu-Kien Truong, Yaotsu Chang and Chong-Dao Lee, The weight distributions of some binary quadratic residue codes, IEEE Transactions on Information Theory, Issue 5, May-2005.

Crossrefs

Sequence in context: A235235 A118815 A235183 * A159220 A020422 A048131

Adjacent sequences: A069643 A069644 A069645 * A069647 A069648 A069649

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Apr 11 2009

Status

approved