A109486 Weight enumerator of [64,30,14] extended BCH code.

1, 0, 0, 0, 0, 0, 0, 8064, 30828, 631680, 1128960, 14022144, 14629440, 105057792, 65046016, 282933504, 106764966, 282933504, 65046016, 105057792, 14629440, 14022144, 1128960, 631680, 30828, 8064, 0, 0, 0, 0, 0, 0, 1

Offset

0,8

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 + 8064*x^50*y^14 + 30828*x^48*y^16 + 631680*x^46*y^18 + 1128960*x^44*y^20 +
14022144*x^42*y^22 + 14629440*x^40*y^24 + 105057792*x^38*y^26 +
65046016*x^36*y^28 + 282933504*x^34*y^30 + 106764966*x^32*y^32 +
282933504*x^30*y^34 + 65046016*x^28*y^36 + 105057792*x^26*y^38 +
14629440*x^24*y^40 + 14022144*x^22*y^42 + 1128960*x^20*y^44 + 631680*x^18*y^46
+ 30828*x^16*y^48 + 8064*x^14*y^50 + y^64

Crossrefs

Sequence in context: A184371 A157663 A232075 * A032780 A159224 A234446

Adjacent sequences: A109483 A109484 A109485 * A109487 A109488 A109489

Keyword

nonn,fini,full

Author

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

Status

approved