A151513 Weight distribution of [128,71,20] extended binary primitive BCH (or XBCH) code.

1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2674112, 37486336, 839699616, 13825045248, 188001347136, 2140095182336, 20510697927468, 166689980438016, 1156658661471040, 6886497209935616, 35363776220195360

Offset

0,11

Comments

Taken from the Terada-Asatani-Koumoto web site.

Links

Table of n, a(n) for n=0..20.

M. Terada, J. Asatani and T. Koumoto, Weight Distribution

Example

The weight distribution is:
0 1
20 2674112
22 37486336
24 839699616
26 13825045248
28 188001347136
30 2140095182336
32 20510697927468
34 166689980438016
36 1156658661471040
38 6886497209935616
40 35363776220195360
42 157207798773129984
44 607468163067994304
46 2045773679068686336
48 6023796954778012480
50 15537040516548126720
52 35191124114633006464
54 70078589269156969984
56 122925566952088660288
58 190054082758956107264
60 259342737902840355456
62 312380032198035579904
64 332409207867786543910
66 312380032198035579904
68 259342737902840355456
70 190054082758956107264
72 122925566952088660288
74 70078589269156969984
76 35191124114633006464
78 15537040516548126720
80 6023796954778012480
82 2045773679068686336
84 607468163067994304
86 157207798773129984
88 35363776220195360
90 6886497209935616
92 1156658661471040
94 166689980438016
96 20510697927468
98 2140095182336
100 188001347136
102 13825045248
104 839699616
106 37486336
108 2674112
128 1

Crossrefs

Sequence in context: A063413 A210388 A251044 * A147712 A250840 A121108

Adjacent sequences: A151510 A151511 A151512 * A151514 A151515 A151516

Keyword

nonn,fini

Author

N. J. A. Sloane, May 15 2009; typo in definition corrected May 22 2009

Status

approved