A034250 Number of quaternary codes (not necessarily linear) of length n with 13 words.

0, 4, 160421289, 301341514055753, 212759983293659858532, 105067580130605231781256012, 42603172007898715981922337319015, 14954884176034777008243661081645101440, 4653866336699333619983205123375833231719464, 1302561543355459585313305069725405805940542534756

Offset

1,2

Links

Table of n, a(n) for n=1..10.

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: A116141 A225876 A067508 * A058436 A067501 A066545

Adjacent sequences: A034247 A034248 A034249 * A034251 A034252 A034253

Keyword

nonn

Author

N. J. A. Sloane.

Extensions

More terms from Sean A. Irvine, Aug 09 2020

Status

approved