A145657 - OEIS

%I #2 Mar 30 2012 16:51:01

%S 1,0,0,0,0,0,0,8103,89133,1093905,8481140,53285328,254815041,

%T 961185963,2871214319,6824006274,13019584383,19988042838,24737670308,

%U 24737670308,19988042838,13019584383,6824006274

%N Weight distribution of [74,37,14] binary extended quadratic-residue (or QR) code.

%C Taken from the Tjhai-Tomlinson web site.

%H C. J. Tjhai and Martin Tomlinson, <a href="http://www.tech.plym.ac.uk/Research/fixed_and_mobile_communications/links/weightdistributions.htm">Weight Distributions of Quadratic Residue and Quadratic Double Circulant Codes over GF(2)</a>

%e The weight distribution is:

%e i A_i

%e 0 1

%e 14 8103

%e 16 89133

%e 18 1093905

%e 20 8481140

%e 22 53285328

%e 24 254815041

%e 26 961185963

%e 28 2871214319

%e 30 6824006274

%e 32 13019584383

%e 34 19988042838

%e 36 24737670308

%e 38 24737670308

%e 40 19988042838

%e 42 13019584383

%e 44 6824006274

%e 46 2871214319

%e 48 961185963

%e 50 254815041

%e 52 53285328

%e 54 8481140

%e 56 1093905

%e 58 89133

%e 60 8103

%e 74 1

%K nonn,fini

%O 0,8

%A _N. J. A. Sloane_, Mar 20 2009