A151513 - OEIS

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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

(list; graph; refs; listen; history; text; internal format)

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