A034194 Number of binary codes of length 9 with n words.

1, 1, 9, 43, 649, 12320, 404154, 16957301, 805174011, 38921113842, 1816451773537, 79799396735243, 3267743403989063, 124448560749072651, 4413401558241969897, 146147123072487323183, 4533679418476771721737

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

Row n=9 of A039754.

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,look

Author

N. J. A. Sloane

Status

approved