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A109487 Weight enumerator of [64,24,16] extended BCH code. 0
1, 0, 0, 0, 0, 0, 0, 0, 2604, 10752, 0, 216576, 291648, 1645056, 888832, 4419072, 1828134, 4419072, 888832, 1645056, 291648, 216576, 0, 10752, 2604, 0, 0, 0, 0, 0, 0, 0, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,9

LINKS

Table of n, a(n) for n=0..32.

N. Heninger, E. M. Rains and N. J. A. Sloane, On the Integrality of n-th Roots of Generating Functions, J. Combinatorial Theory, Series A, 113 (2006), 1732-1745.

M. Terada, J. Asatani and T. Koumoto, Weight Distribution

EXAMPLE

x^64 + 2604*x^48*y^16 + 10752*x^46*y^18 + 216576*x^42*y^22 + 291648*x^40*y^24 +

1645056*x^38*y^26 + 888832*x^36*y^28 + 4419072*x^34*y^30 + 1828134*x^32*y^32 +

4419072*x^30*y^34 + 888832*x^28*y^36 + 1645056*x^26*y^38 + 291648*x^24*y^40 +

216576*x^22*y^42 + 10752*x^18*y^46 + 2604*x^16*y^48 + y^64

The weight distribution is:

0 1

16 2604

18 10752

22 216576

24 291648

26 1645056

28 888832

30 4419072

32 1828134

34 4419072

36 888832

38 1645056

40 291648

42 216576

46 10752

48 2604

64 1

CROSSREFS

Sequence in context: A031549 A031729 A001726 * A015309 A212083 A236889

Adjacent sequences:  A109484 A109485 A109486 * A109488 A109489 A109490

KEYWORD

nonn,fini,full

AUTHOR

N. J. A. Sloane and Nadia Heninger, Aug 29 2005

STATUS

approved

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Last modified May 28 17:37 EDT 2020. Contains 334684 sequences. (Running on oeis4.)