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A109479 Weight enumerator of [64,51,6] extended BCH code. 1
1, 0, 0, 20160, 1067544, 37051840, 801494400, 11684617344, 119266575708, 879321948288, 4789977429888, 19616032446528, 61193769988008, 146864398476096, 273137809339136, 395577405119232, 447418802536902, 395577405119232, 273137809339136, 146864398476096 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..19.

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 + 20160*x^58*y^6 + 1067544*x^56*y^8 + 37051840*x^54*y^10 +

801494400*x^52*y^12 + 11684617344*x^50*y^14 + 119266575708*x^48*y^16 +

879321948288*x^46*y^18 + 4789977429888*x^44*y^20 + 19616032446528*x^42*y^22 +

61193769988008*x^40*y^24 + 146864398476096*x^38*y^26 + 273137809339136*x^36*y^28 +

395577405119232*x^34*y^30 + 447418802536902*x^32*y^32 + 395577405119232*x^30*y^34 + 273137809339136*x^28*y^36 +

146864398476096*x^26*y^38 + 61193769988008*x^24*y^40 + 19616032446528*x^22*y^42 + 4789977429888*x^20*y^44 +

879321948288*x^18*y^46 + 119266575708*x^16*y^48 + 11684617344*x^14*y^50 + 801494400*x^12*y^52 + 37051840*x^10*y^54 +

1067544*x^8*y^56 + 20160*x^6*y^58 + y^64

CROSSREFS

Sequence in context: A204864 A145535 A190474 * A003808 A011786 A003801

Adjacent sequences:  A109476 A109477 A109478 * A109480 A109481 A109482

KEYWORD

nonn,fini

AUTHOR

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

STATUS

approved

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Last modified May 15 13:52 EDT 2021. Contains 343920 sequences. (Running on oeis4.)