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A151623 Weight distribution of [256,55,64] extended binary primitive BCH (or XBCH) code. 1

%I #6 Jul 16 2020 20:35:59

%S 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

%T 43180,0,0,130560,1044480,0,0,10183680,23109120,270781440,319610880,

%U 4518816768,5955102720,59945135616,64479928320,598790983680

%N Weight distribution of [256,55,64] extended binary primitive BCH (or XBCH) code.

%C Taken from the Terada-Asatani-Koumoto web site.

%H Georg Fischer, <a href="/A151623/b151623.txt">Table of n, a(n) for n = 0..128</a>

%H M. Terada, J. Asatani and T. Koumoto, <a href="http://isec.ec.okayama-u.ac.jp/home/kusaka/wd/index.html">Weight Distribution</a>

%e The weight distribution is:

%e i A_i

%e 0 1

%e 64 43180

%e 70 130560

%e 72 1044480

%e 78 10183680

%e 80 23109120

%e 82 270781440

%e 84 319610880

%e 86 4518816768

%e 88 5955102720

%e 90 59945135616

%e 92 64479928320

%e 94 598790983680

%e 96 572202044736

%e 98 4583317155840

%e 100 3825903083520

%e 102 26953843315200

%e 104 19772333844480

%e 106 122268832164864

%e 108 78803853926400

%e 110 429068409283584

%e 112 243546776711680

%e 114 1167965667240960

%e 116 584395471503360

%e 118 2470889383864320

%e 120 1090391065821184

%e 122 4068684362580480

%e 124 1584675425894400

%e 126 5219721530474496

%e 128 1795091631404070

%e 130 5219721530474496

%e 132 1584675425894400

%e 134 4068684362580480

%e 136 1090391065821184

%e 138 2470889383864320

%e 140 584395471503360

%e 142 1167965667240960

%e 144 243546776711680

%e 146 429068409283584

%e 148 78803853926400

%e 150 122268832164864

%e 152 19772333844480

%e 154 26953843315200

%e 156 3825903083520

%e 158 4583317155840

%e 160 572202044736

%e 162 598790983680

%e 164 64479928320

%e 166 59945135616

%e 168 5955102720

%e 170 4518816768

%e 172 319610880

%e 174 270781440

%e 176 23109120

%e 178 10183680

%e 184 1044480

%e 186 130560

%e 192 43180

%e 256 1

%K nonn,fini,full

%O 0,33

%A _N. J. A. Sloane_, May 30 2009

%E Zeroes inserted by _Georg Fischer_, Jul 16 2020

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Last modified April 18 18:58 EDT 2024. Contains 371781 sequences. (Running on oeis4.)