%I #3 Mar 30 2012 16:49:52
%S 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,54824,219296,626560,2192960,
%T 7462917,23067198,66429244,182680421,476804328,1173672192,2739870518,
%U 6066856147,12753805999,25507611998,48541216592
%N Weight distribution of [89,45,17] binary 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 17 54824
%e 18 219296
%e 19 626560
%e 20 2192960
%e 21 7462917
%e 22 23067198
%e 23 66429244
%e 24 182680421
%e 25 476804328
%e 26 1173672192
%e 27 2739870518
%e 28 6066856147
%e 29 12753805999
%e 30 25507611998
%e 31 48541216592
%e 32 87980955073
%e 33 151999782169
%e 34 250352582396
%e 35 393412044806
%e 36 590118067209
%e 37 845206560770
%e 38 1156598451580
%e 39 1512562040968
%e 40 1890702551210
%e 41 2259707219462
%e 42 2582522536528
%e 43 2822590555180
%e 44 2950890125870
%e 45 2950890125870
%e 46 2822590555180
%e 47 2582522536528
%e 48 2259707219462
%e 49 1890702551210
%e 50 1512562040968
%e 51 1156598451580
%e 52 845206560770
%e 53 590118067209
%e 54 393412044806
%e 55 250352582396
%e 56 151999782169
%e 57 87980955073
%e 58 48541216592
%e 59 25507611998
%e 60 12753805999
%e 61 6066856147
%e 62 2739870518
%e 63 1173672192
%e 64 476804328
%e 65 182680421
%e 66 66429244
%e 67 23067198
%e 68 7462917
%e 69 2192960
%e 70 626560
%e 71 219296
%e 72 54824
%e 89 1
%K nonn,fini
%O 0,18
%A _N. J. A. Sloane_, Apr 10 2009
|