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A034192 Number of binary codes of length 7 with n words. +0
1
1, 1, 7, 23, 203, 1606, 18435, 221778, 2773763, 33297380, 375158732, 3907656327, 37504171766, 331785257145, 2712509085687, 20560611034067, 144992583036707, 954428916508309, 5882732966056385, 34048050206744705 (list; graph; listen)
OFFSET

0,3
REFERENCES

H. Fripertinger, Enumeration, construction and random generation of block codes, Designs, Codes, Crypt., 14 (1998), 213-219.

LINKS

H. Fripertinger, Isometry Classes of Codes

CROSSREFS

Cf. A034188-.

Sequence in context: A158954 A056205 A099051 this_sequence A050918 A159485 A009047

Adjacent sequences: A034189 A034190 A034191 this_sequence A034193 A034194 A034195

KEYWORD

nonn

AUTHOR

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

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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