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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A146897 Weight distribution of [108,54,20] double circulant code. 1
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 260442, 5804136, 74455407, 746650008, 6776021115, 48988609776, 296249593887, 1505946930696, 6456853758147, 23472658198080, 72678166237737, 192293022909528, 436002802265628, 849260837522448 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,11

COMMENTS

Taken from the Tjhai-Tomlinson web site.

LINKS

Georg Fischer, Table of n, a(n) for n = 0..54

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 260442

22 5804136

24 74455407

26 746650008

28 6776021115

30 48988609776

32 296249593887

34 1505946930696

36 6456853758147

38 23472658198080

40 72678166237737

42 192293022909528

44 436002802265628

46 849260837522448

48 1423731100290057

50 2057126174405640

52 2564427604488075

54 2759782492680368

56 2564427604488075

58 2057126174405640

60 1423731100290057

62 849260837522448

64 436002802265628

66 192293022909528

68 72678166237737

70 23472658198080

72 6456853758147

74 1505946930696

76 296249593887

78 48988609776

80 6776021115

82 746650008

84 74455407

86 5804136

88 260442

108 1

CROSSREFS

Sequence in context: A317747 A252445 A184781 * A249836 A226111 A002272

Adjacent sequences:  A146894 A146895 A146896 * A146898 A146899 A146900

KEYWORD

nonn,fini,full

AUTHOR

N. J. A. Sloane, Apr 18 2009

EXTENSIONS

Zeroes inserted by Georg Fischer, Jul 16 2020

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 September 26 09:15 EDT 2021. Contains 347664 sequences. (Running on oeis4.)