A142708 - OEIS

A142708

Weight distribution of [114,57,16] binary extended quadratic-residue (or QR) code.

1, 0, 0, 0, 0, 0, 0, 0, 25764, 0, 450870, 2795394, 36685789, 468994974, 4741799790, 40222705272, 282354497019, 1670741392215, 8378734842802, 35791510616904, 130792381305999, 410299386601373, 1108537936510704

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OFFSET

0,9

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

16 25764

20 450870

22 2795394

24 36685789

26 468994974

28 4741799790

30 40222705272

32 282354497019

34 1670741392215

36 8378734842802

38 35791510616904

40 130792381305999

42 410299386601373

44 1108537936510704

46 2586605780563854

48 5223754097520833

50 9146861126267592

52 13906428976796370

54 18376732004342040

56 21121413533212376

58 21121413533212376

60 18376732004342040

62 13906428976796370

64 9146861126267592

66 5223754097520833

68 2586605780563854

70 1108537936510704

72 410299386601373

74 130792381305999

76 35791510616904

78 8378734842802

80 1670741392215

82 282354497019

84 40222705272

86 4741799790

88 468994974

90 36685789

92 2795394

94 450870

98 25764

114 1

CROSSREFS

Sequence in context: A237478 A115535 A109252 * A224575 A237962 A237744

Adjacent sequences: A142705 A142706 A142707 * A142709 A142710 A142711

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane, Apr 02 2009

STATUS

approved