A031137 - OEIS

A031137

Weight distribution of [48,23,8] Rao-Reddy code.

1, 0, 0, 0, 7530, 92160, 1080384, 7342080, 34408911, 111507456, 255566784, 417404928, 492663180, 417404928, 255566784, 111507456, 34408911, 7342080, 1080384, 92160, 7530, 0, 0, 0, 1

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OFFSET

0,5

REFERENCES

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 234.

V. V. Rao and S. M. Reddy, A (48,31,8) linear code, IEEE Trans. Inform. Theory, 19 (1973), 709-711.

LINKS

Table of n, a(n) for n=0..24.

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.

CROSSREFS

Cf. A031136, A108179.

Sequence in context: A186938 A185749 A077096 * A380994 A210171 A234987

Adjacent sequences: A031134 A031135 A031136 * A031138 A031139 A031140

KEYWORD

nonn,fini,full

AUTHOR

N. J. A. Sloane.

STATUS

approved