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A145687 Weight distribution of [168,84,24] binary extended quadratic-residue (or QR) code. 2

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

%S 1,0,0,0,0,0,776216,18130188,5550332508,1251282702264,166071600559137,

%T 13047136918828740,629048543890724224,19087130695796613120,

%U 372099690249351069696,4739291519495550533632

%N Weight distribution of [168,84,24] 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 24 776216

%e 28 18130188

%e 32 5550332508

%e 36 1251282702264

%e 40 166071600559137

%e 44 13047136918828740

%e 48 629048543890724224

%e 52 19087130695796613120

%e 56 372099690249351069696

%e 60 4739291519495550533632

%e 64 39973673337590380494848

%e 68 225696677727188706918400

%e 72 860241108921860734582784

%e 76 2227390683565491872595968

%e 80 3935099586463594350379008

%e 84 4755747412595715350724608

%e 88 3935099586463594350379008

%e 92 2227390683565491872595968

%e 96 860241108921860734582784

%e 100 225696677727188706918400

%e 104 39973673337590380494848

%e 108 4739291519495550533632

%e 112 372099690249351069696

%e 116 19087130695796613120

%e 120 629048543890724224

%e 124 13047136918828740

%e 128 166071600559137

%e 132 1251282702264

%e 136 5550332508

%e 140 18130188

%e 144 776216

%e 168 1

%K nonn,fini

%O 0,7

%A _N. J. A. Sloane_, Apr 02 2009

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Last modified July 14 15:35 EDT 2024. Contains 374322 sequences. (Running on oeis4.)