A034243 Number of quaternary codes (not necessarily linear) of length n with 6 words.

0, 23, 1643, 77194, 2877651, 90647411, 2479201432, 59893592245, 1295484202258, 25372355562592, 454245432823858, 7493960729135396

Offset

1,2

Links

Table of n, a(n) for n=1..12.

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: A264903 A003281 A330658 * A183480 A002439 A229814

Adjacent sequences: A034240 A034241 A034242 * A034244 A034245 A034246

Keyword

nonn,more

Author

N. J. A. Sloane

Extensions

a(10)-a(12) from Sean A. Irvine, Aug 09 2020

Status

approved