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A084554 Weight distribution of [104,52,20] binary extended quadratic-residue (or QR) code. 0
1, 0, 0, 0, 0, 1138150, 206232780, 15909698064, 567725836990, 9915185041320, 88355709788905, 413543821457520, 1036378989344140, 1406044530294756, 1036378989344140, 413543821457520, 88355709788905, 9915185041320 (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..17.

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 1138150

24 206232780

28 15909698064

32 567725836990

36 9915185041320

40 88355709788905

44 413543821457520

48 1036378989344140

52 1406044530294756

56 1036378989344140

60 413543821457520

64 88355709788905

68 9915185041320

72 567725836990

76 15909698064

80 206232780

84 1138150

104 1

CROSSREFS

Sequence in context: A100365 A234979 A233874 * A234554 A192104 A210181

Adjacent sequences:  A084551 A084552 A084553 * A084555 A084556 A084557

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane, Mar 30 2009

STATUS

approved

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Last modified October 23 22:26 EDT 2017. Contains 293833 sequences.