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

Author

N. J. A. Sloane

Keywords

• nonn
• fini
• full
• look

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.