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A034356 Triangle read by rows giving T(n,k) = number of inequivalent linear [n,k] binary codes (n >= 1, 1 <= k <= n). 15
1, 2, 1, 3, 3, 1, 4, 6, 4, 1, 5, 10, 10, 5, 1, 6, 16, 22, 16, 6, 1, 7, 23, 43, 43, 23, 7, 1, 8, 32, 77, 106, 77, 32, 8, 1, 9, 43, 131, 240, 240, 131, 43, 9, 1, 10, 56, 213, 516, 705, 516, 213, 56, 10, 1, 11, 71, 333, 1060, 1988, 1988, 1060, 333, 71, 11, 1, 12, 89 (list; table; graph; refs; listen; history; internal format)
OFFSET

1,2

REFERENCES

H. Fripertinger and A. Kerber, in AAECC-11, Lect. Notes Comp. Sci. 948 (1995), 194-204.

LINKS

H. Fripertinger, Isometry Classes of Codes

EXAMPLE

1; 2 1; 3 3 1; 4 6 4 1;...

CROSSREFS

This is A076831 with the k=0 column omitted. Cf. A034253, A034254, A034328.

Sequence in context: A134394 A074909 A135278 * A075195 A126885 A130305

Adjacent sequences:  A034353 A034354 A034355 * A034357 A034358 A034359

KEYWORD

tabl,nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 14 17:35 EST 2012. Contains 205644 sequences.