login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A031504 Size of lexicographic code of length n, Hamming distance 6 and weight 6. 0
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 (list; graph; refs; listen; history; text; internal format)
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: A266137 A265506 A300301 * A298164 A304265 A049871

Adjacent sequences:  A031501 A031502 A031503 * A031505 A031506 A031507

KEYWORD

nonn

AUTHOR

Eric Rains (rains(AT)caltech.edu)

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 22 07:31 EST 2022. Contains 350481 sequences. (Running on oeis4.)