A031504 Size of lexicographic code of length n, Hamming distance 6 and weight 6.

1, 1, 1, 3, 3, 6, 10, 18, 26, 36, 48, 65, 88, 118, 155, 191, 237, 290, 354, 431, 517, 612, 718, 841, 980, 1134, 1303, 1499, 1710, 1945, 2200, 2478, 2788, 3118, 3483, 3882, 4311, 4773, 5277, 5823, 6409, 7027, 7689, 8406, 9162, 9968, 10828, 11761

Offset

6,4

Links

Table of n, a(n) for n=6..53.

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: A265506 A366317 A300301 * A298164 A304265 A049871

Adjacent sequences: A031501 A031502 A031503 * A031505 A031506 A031507

Keyword

nonn

Author

Eric Rains (rains(AT)caltech.edu)

Status

approved