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A098786 Weight distribution of [90,45,18] binary extended quadratic-residue (or QR) code. 0
1, 0, 0, 0, 0, 0, 0, 0, 0, 274120, 2819520, 30530115, 249109665, 1650476520, 8806726665, 38261417997, 136522171665, 402352364565, 983530112015, 2001805012350, 3403264592178, 4842229755990, 5773480681050 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,10

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

18 274120

20 2819520

22 30530115

24 249109665

26 1650476520

28 8806726665

30 38261417997

32 136522171665

34 402352364565

36 983530112015

38 2001805012350

40 3403264592178

42 4842229755990

44 5773480681050

46 5773480681050

48 4842229755990

50 3403264592178

52 2001805012350

54 983530112015

56 402352364565

58 136522171665

60 38261417997

62 8806726665

64 1650476520

66 249109665

68 30530115

70 2819520

72 274120

90 1

CROSSREFS

Sequence in context: A114663 A151650 A128479 * A235300 A256364 A250509

Adjacent sequences:  A098783 A098784 A098785 * A098787 A098788 A098789

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane, Mar 30 2009

STATUS

approved

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Last modified November 18 19:06 EST 2017. Contains 294894 sequences.