A131353 - OEIS

A131353

Weight distribution of [124,62,20] double circulant code.

1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 90768, 529480, 10873250, 171180884, 2159102198, 22668808776, 199576556020, 1489045613508, 9466389337938, 51549138453256, 241551099887720, 977979841051968, 3433274842143012

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

OFFSET

0,11

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

20 90768

22 529480

24 10873250

26 171180884

28 2159102198

30 22668808776

32 199576556020

34 1489045613508

36 9466389337938

38 51549138453256

40 241551099887720

42 977979841051968

44 3433274842143012

46 10482288501057056

48 27906300869721380

50 64924782329852000

52 132248827882614304

54 236218089014480064

56 370432817595720576

58 510493584341738304

60 618649064180799872

62 659543439108163328

64 618649064180799872

66 510493584341738304

68 370432817595720576

70 236218089014480064

72 132248827882614304

74 64924782329852000

76 27906300869721380

78 10482288501057056

80 3433274842143012

82 977979841051968

84 241551099887720

86 51549138453256

88 9466389337938

90 1489045613508

92 199576556020

94 22668808776

96 2159102198

98 171180884

100 10873250

102 529480

104 90768

124 1

CROSSREFS

Sequence in context: A075007 A287383 A179732 * A183677 A015316 A212853

Adjacent sequences: A131350 A131351 A131352 * A131354 A131355 A131356

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane, Apr 19 2009

STATUS

approved