cp's OEIS Frontend

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

%I A145687 #2 Mar 30 2012 16:51:01
%S A145687 1,0,0,0,0,0,776216,18130188,5550332508,1251282702264,166071600559137,
%T A145687 13047136918828740,629048543890724224,19087130695796613120,
%U A145687 372099690249351069696,4739291519495550533632
%N A145687 Weight distribution of [168,84,24] binary extended quadratic-residue (or QR) code.
%C A145687 Taken from the Tjhai-Tomlinson web site.
%H A145687 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 A145687 The weight distribution is:
%e A145687 i A_i
%e A145687 0 1
%e A145687 24 776216
%e A145687 28 18130188
%e A145687 32 5550332508
%e A145687 36 1251282702264
%e A145687 40 166071600559137
%e A145687 44 13047136918828740
%e A145687 48 629048543890724224
%e A145687 52 19087130695796613120
%e A145687 56 372099690249351069696
%e A145687 60 4739291519495550533632
%e A145687 64 39973673337590380494848
%e A145687 68 225696677727188706918400
%e A145687 72 860241108921860734582784
%e A145687 76 2227390683565491872595968
%e A145687 80 3935099586463594350379008
%e A145687 84 4755747412595715350724608
%e A145687 88 3935099586463594350379008
%e A145687 92 2227390683565491872595968
%e A145687 96 860241108921860734582784
%e A145687 100 225696677727188706918400
%e A145687 104 39973673337590380494848
%e A145687 108 4739291519495550533632
%e A145687 112 372099690249351069696
%e A145687 116 19087130695796613120
%e A145687 120 629048543890724224
%e A145687 124 13047136918828740
%e A145687 128 166071600559137
%e A145687 132 1251282702264
%e A145687 136 5550332508
%e A145687 140 18130188
%e A145687 144 776216
%e A145687 168 1
%K A145687 nonn,fini
%O A145687 0,7
%A A145687 _N. J. A. Sloane_, Apr 02 2009