A034242 Number of quaternary codes (not necessarily linear) of length n with 5 words.

0, 13, 254, 3227, 32970, 292103, 2303283, 16388502, 106287822, 633822588, 3502418937, 18058528687

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: A157946 A352653 A321849 * A142811 A034833 A101004

Adjacent sequences: A034239 A034240 A034241 * A034243 A034244 A034245

Keyword

nonn,more

Author

N. J. A. Sloane.

Extensions

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

Status

approved