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A034194 Number of binary codes of length 9 with n words. 11
1, 1, 9, 43, 649, 12320, 404154, 16957301, 805174011, 38921113842, 1816451773537, 79799396735243, 3267743403989063, 124448560749072651, 4413401558241969897, 146147123072487323183, 4533679418476771721737 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Sean A. Irvine, Table of n, a(n) for n = 0..512

H. Fripertinger, Isometry Classes of Codes

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

CROSSREFS

Cf. A034188, A034189, A034190, A034191, A034192, A034193, A034195, A034196, A034197.

Sequence in context: A221751 A275793 A223647 * A075206 A161457 A162212

Adjacent sequences:  A034191 A034192 A034193 * A034195 A034196 A034197

KEYWORD

nonn,fini,full

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified November 30 15:55 EST 2020. Contains 338807 sequences. (Running on oeis4.)