A034192 Number of binary codes of length 7 with n words.

1, 1, 7, 23, 203, 1606, 18435, 221778, 2773763, 33297380, 375158732, 3907656327, 37504171766, 331785257145, 2712509085687, 20560611034067, 144992583036707, 954428916508309, 5882732966056385, 34048050206744705

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• fini
• full

Links

• Sean A. Irvine, Table of n, a(n) for n = 0..128
• 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=7 of A039754.

Cf. A034188, A034189, A034190, A034191, A034193, A034194, A034195, A034196, A034197.