A031503 Size of lexicographic code of length n, Hamming distance 12 and weight 12.

1, 1, 1, 1, 1, 1, 3, 3, 3, 7, 7, 14, 24, 31, 41, 54, 68, 89, 117, 148, 190, 239, 300, 375, 465

Offset

12,7

Links

Table of n, a(n) for n=12..36.

J. H. Conway and N. J. A. Sloane, Lexicographic codes: error-correcting codes from game theory, IEEE Transactions on Information Theory, 32:337-348, 1986.

Crossrefs

Sequence in context: A095108 A132197 A077885 * A049500 A227826 A268127

Adjacent sequences: A031500 A031501 A031502 * A031504 A031505 A031506

Keyword

nonn,more

Author

Eric Rains (rains(AT)caltech.edu)

Status

approved