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A080953 Weight distribution of [151,76,19] binary quadratic-residue (or QR) code. 1
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3775, 24915, 0, 0, 113250, 604000, 0, 0, 30256625, 133993625, 0, 0, 8292705580, 31097645925, 0, 0, 1302257122605, 4196161839505, 0, 0, 113402818847850, 317527892773980, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,20

COMMENTS

Taken from the Tjhai-Tomlinson web site.

LINKS

Table of n, a(n) for n=0..41.

C. J. Tjhai and Martin Tomlinson, Weight Distributions of Quadratic Residue and Quadratic Double Circulant Codes over GF(2)

EXAMPLE

The weight distribution is:

i A_i

0 1

19 3775

20 24915

23 113250

24 604000

27 30256625

28 133993625

31 8292705580

32 31097645925

35 1302257122605

36 4196161839505

39 113402818847850

40 317527892773980

43 5706949034630250

44 14007965812274250

47 171469716029462688

48 371517718063835840

51 3155019195317145088

52 6067344606379124736

55 36274321608490643456

56 62184551328841105408

59 264765917968736092160

60 405974407552061997056

63 1241968201959417053184

64 1707706277694198513664

67 3778485133479463354368

68 4667540459004043460608

71 7503425412744902344704

72 8337139347494335938560

75 9763682329503348031488

76 9763682329503348031488

79 8337139347494335938560

80 7503425412744902344704

83 4667540459004043460608

84 3778485133479463354368

87 1707706277694198513664

88 1241968201959417053184

91 405974407552061997056

92 264765917968736092160

95 62184551328841105408

96 36274321608490643456

99 6067344606379124736

100 3155019195317145088

103 371517718063835840

104 171469716029462688

107 14007965812274250

108 5706949034630250

111 317527892773980

112 113402818847850

115 4196161839505

116 1302257122605

119 31097645925

120 8292705580

123 133993625

124 30256625

127 604000

128 113250

131 24915

132 3775

151 1

CROSSREFS

Sequence in context: A137790 A284079 A108179 * A178193 A243777 A135200

Adjacent sequences:  A080950 A080951 A080952 * A080954 A080955 A080956

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane, Apr 15 2009

STATUS

approved

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Last modified August 21 10:16 EDT 2017. Contains 290864 sequences.