A034235 Number of quaternary codes of length 4 with n words.

1, 1, 4, 20, 223, 3227, 77194, 2097080, 57796870, 1502295684, 36065804158, 795109767172, 16115614918786, 301341514055753, 5220182848555434, 84132279974374399

Offset

0,3

Links

Sean A. Irvine, Table of n, a(n) for n = 0..256

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-.

Sequence in context: A066917 A280078 A032081 * A352412 A222655 A000847

Adjacent sequences: A034232 A034233 A034234 * A034236 A034237 A034238

Keyword

nonn,fini,full

Author

N. J. A. Sloane.

Status

approved