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A145686 Weight distribution of [152,76,20] binary extended quadratic-residue (or QR) code. 0
1, 0, 0, 0, 0, 28690, 717250, 164250250, 39390351505, 5498418962110, 430930711621830, 19714914846904500, 542987434093298560, 9222363801696269312, 98458872937331752960, 670740325520798121984 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

COMMENTS

Taken from the Tjhai-Tomlinson web site.

LINKS

Table of n, a(n) for n=0..15.

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 28690

24 717250

28 164250250

32 39390351505

36 5498418962110

40 430930711621830

44 19714914846904500

48 542987434093298560

52 9222363801696269312

56 98458872937331752960

60 670740325520798121984

64 2949674479653615566848

68 8446025592483506814976

72 15840564760239237234688

76 19527364659006696062976

80 15840564760239237234688

84 8446025592483506814976

88 2949674479653615566848

92 670740325520798121984

96 98458872937331752960

100 9222363801696269312

104 542987434093298560

108 19714914846904500

112 430930711621830

116 5498418962110

120 39390351505

124 164250250

128 717250

132 28690

152 1

CROSSREFS

Sequence in context: A122650 A172755 A172827 * A224576 A234835 A255659

Adjacent sequences:  A145683 A145684 A145685 * A145687 A145688 A145689

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane, Apr 02 2009

STATUS

approved

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Last modified July 30 04:38 EDT 2021. Contains 346348 sequences. (Running on oeis4.)