The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A145686 Weight distribution of [152,76,20] binary extended quadratic-residue (or QR) code. 0

%I

%S 1,0,0,0,0,28690,717250,164250250,39390351505,5498418962110,

%T 430930711621830,19714914846904500,542987434093298560,

%U 9222363801696269312,98458872937331752960,670740325520798121984

%N Weight distribution of [152,76,20] 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 20 28690

%e 24 717250

%e 28 164250250

%e 32 39390351505

%e 36 5498418962110

%e 40 430930711621830

%e 44 19714914846904500

%e 48 542987434093298560

%e 52 9222363801696269312

%e 56 98458872937331752960

%e 60 670740325520798121984

%e 64 2949674479653615566848

%e 68 8446025592483506814976

%e 72 15840564760239237234688

%e 76 19527364659006696062976

%e 80 15840564760239237234688

%e 84 8446025592483506814976

%e 88 2949674479653615566848

%e 92 670740325520798121984

%e 96 98458872937331752960

%e 100 9222363801696269312

%e 104 542987434093298560

%e 108 19714914846904500

%e 112 430930711621830

%e 116 5498418962110

%e 120 39390351505

%e 124 164250250

%e 128 717250

%e 132 28690

%e 152 1

%K nonn,fini

%O 0,6

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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 20 10:18 EDT 2021. Contains 347584 sequences. (Running on oeis4.)