A034237 Number of quaternary codes of length 6 with n words.

1, 1, 6, 57, 2309, 292103, 90647411, 37593032352, 16429342163157, 6925787777638463, 2729333815881686935, 995740669987430403414, 335945077218184962957540, 105067580130605231781256012

Offset

0,3

Comments

a(4096)=1 is the last term. - Sean A. Irvine, Aug 08 2020

Links

Table of n, a(n) for n=0..13.

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: A180255 A371033 A034218 * A291628 A197543 A184708

Adjacent sequences: A034234 A034235 A034236 * A034238 A034239 A034240

Keyword

nonn,fini

Author

N. J. A. Sloane.

Status

approved