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A097937 Weight distribution of [138,69,22] binary extended quadratic-residue (or QR) code. 0
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 321402, 2356948, 21533934, 490138050, 6648307504, 77865259035, 771068968365, 6551964560395, 48016671847203, 304734017875437, 1682222779056949, 8108674129521168 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,12

COMMENTS

Taken from the Tjhai-Tomlinson web site.

LINKS

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

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

22 321402

24 2356948

26 21533934

28 490138050

30 6648307504

32 77865259035

34 771068968365

36 6551964560395

38 48016671847203

40 304734017875437

42 1682222779056949

44 8108674129521168

46 34244594187642952

48 127081843539044176

50 415479348655935232

52 1199437032565603072

54 3063553566175154176

56 6934772281891681280

58 13932469221702236160

60 24873788403009712128

62 39500790442042376192

64 55841886989113688064

66 70316519062819815424

68 78897731337990193152

70 78897731337990193152

72 70316519062819815424

74 55841886989113688064

76 39500790442042376192

78 24873788403009712128

80 13932469221702236160

82 6934772281891681280

84 3063553566175154176

86 1199437032565603072

88 415479348655935232

90 127081843539044176

92 34244594187642952

94 8108674129521168

96 1682222779056949

98 304734017875437

100 48016671847203

102 6551964560395

104 771068968365

106 77865259035

108 6648307504

110 490138050

112 21533934

114 2356948

116 321402

138 1

CROSSREFS

Sequence in context: A210317 A205931 A236318 * A244565 A186880 A114667

Adjacent sequences:  A097934 A097935 A097936 * A097938 A097939 A097940

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane, Apr 02 2009

STATUS

approved

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Last modified March 27 22:02 EDT 2017. Contains 284182 sequences.