login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A146075 Weight distribution of [41,21,9] binary quadratic-residue (or QR) code. 0
1, 0, 0, 0, 0, 0, 0, 0, 0, 410, 1312, 3034, 7585, 16605, 33210, 60024, 97539, 146370, 195160, 232060, 255266, 255266, 232060, 195160, 146370, 97539, 60024, 33210, 16605, 7585, 3034, 1312, 410, 0, 0, 0, 0, 0, 0, 0, 0, 1 (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..41.

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

9 410

10 1312

11 3034

12 7585

13 16605

14 33210

15 60024

16 97539

17 146370

18 195160

19 232060

20 255266

21 255266

22 232060

23 195160

24 146370

25 97539

26 60024

27 33210

28 16605

29 7585

30 3034

31 1312

32 410

41 1

CROSSREFS

Sequence in context: A157431 A179129 A176598 * A212710 A187991 A090123

Adjacent sequences:  A146072 A146073 A146074 * A146076 A146077 A146078

KEYWORD

nonn,fini,full

AUTHOR

N. J. A. Sloane, Apr 07 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 26 12:37 EST 2020. Contains 338639 sequences. (Running on oeis4.)