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A076832 Triangle T(n,k) read by rows giving total number of inequivalent binary linear [n,i] codes with no column of zeros, summed for i <= k (n >= 1, 1 <= k <= n). 8
1, 1, 2, 1, 3, 4, 1, 4, 7, 8, 1, 5, 11, 15, 16, 1, 7, 19, 30, 35, 36, 1, 8, 29, 56, 73, 79, 80, 1, 10, 44, 107, 161, 186, 193, 194, 1, 12, 66, 200, 363, 462, 497, 505, 506, 1, 14, 96, 372, 837, 1222, 1392, 1439, 1448, 1449, 1, 16, 136, 680, 1963, 3435, 4282 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,3

REFERENCES

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

D. Slepian, Some further theory of group codes. Bell System Tech. J. 39 1960 1219-1252.

LINKS

Table of n, a(n) for n=1..62.

H. Fripertinger, Isometry Classes of Codes

Index entries for sequences related to binary linear codes

EXAMPLE

1; 1,2; 1,3,4; 1,4,7,8; 1,5,11,15,16; 1,7,19,30,35,36; ...

CROSSREFS

Columns give A001399, A034337-A034342 and A034343. Cf. A034253, A076831, A076832.

Sequence in context: A163311 A210555 A008949 * A078925 A072506 A188236

Adjacent sequences:  A076829 A076830 A076831 * A076833 A076834 A076835

KEYWORD

nonn,tabl

AUTHOR

N. J. A. Sloane, Nov 21 2002

EXTENSIONS

Revised by N. J. A. Sloane, Mar 01 2004

STATUS

approved

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Last modified February 20 06:26 EST 2019. Contains 320332 sequences. (Running on oeis4.)