A140792 Weight distribution of [128,64,22] extended binary primitive BCH (or XBCH) code.

1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 243840, 6855968, 107988608, 1479751168, 16581217536, 161471882796, 1292241296640, 9106516329984, 53383279307904, 278420690161824, 1218666847725184, 4782630191822848

Offset

0,12

Comments

Taken from the Terada-Asatani-Koumoto web site.

Links

Table of n, a(n) for n=0..22.

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

Example

The weight distribution is:
i A_i
0 1
22 243840
24 6855968
26 107988608
28 1479751168
30 16581217536
32 161471882796
34 1292241296640
36 9106516329984
38 53383279307904
40 278420690161824
42 1218666847725184
44 4782630191822848
46 15858705600596992
48 47425684161326912
50 120442185147493376
52 277061634654099456
54 543244862505775360
56 967799721857135168
58 1473287478189735168
60 2041819511308530688
62 2421550630907043328
64 2617075886216910118
66 2421550630907043328
68 2041819511308530688
70 1473287478189735168
72 967799721857135168
74 543244862505775360
76 277061634654099456
78 120442185147493376
80 47425684161326912
82 15858705600596992
84 4782630191822848
86 1218666847725184
88 278420690161824
90 53383279307904
92 9106516329984
94 1292241296640
96 161471882796
98 16581217536
100 1479751168
102 107988608
104 6855968
106 243840
128 1

Crossrefs

Sequence in context: A244545 A248447 A187534 * A083623 A186801 A157761

Adjacent sequences: A140789 A140790 A140791 * A140793 A140794 A140795

Keyword

nonn,fini

Author

N. J. A. Sloane, May 15 2009

Status

approved