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A060440 Triangle T(n,k), 1 <= k <= n, giving maximal size of code of length n and covering radius k over alphabet of size 4. 2
1, 4, 1, 8, 4, 1, 24, 7, 4, 1, 64, 16, 4, 4, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

G. D. Cohen et al., Covering Codes, North-Holland, 1997, p. 174.

LINKS

Table of n, a(n) for n=1..15.

Gerzson Kéri, Tables for Bounds on Covering Codes.

Index entries for sequences related to covering codes

EXAMPLE

1; 4,1; 8,4,1; 24,7,4,1; ...

CROSSREFS

Cf. A060438, A060439.

Sequence in context: A105534 A021243 A096051 * A021709 A193337 A141567

Adjacent sequences:  A060437 A060438 A060439 * A060441 A060442 A060443

KEYWORD

nonn,tabl,nice

AUTHOR

N. J. A. Sloane, Apr 07 2001

EXTENSIONS

T(5,2)-T(5,5) from Andrey Zabolotskiy, Apr 11 2017 using Gerzson Kéri's tables.

STATUS

approved

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Last modified October 21 20:44 EDT 2019. Contains 328315 sequences. (Running on oeis4.)