A034252 Number of quaternary codes (not necessarily linear) of length n with 15 words.

0, 1, 1934022164, 84132279974374399, 1031480539243199520034660, 8310809015721735456185639217040, 54158497721151149425654087606674852696, 304390060432492084012377982122567201961380857, 1515225779420036030072761808322973017812564229108068

Offset

1,3

Links

Table of n, a(n) for n=1..9.

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: A339251 A233002 A165075 * A016931 A016991 A017159

Adjacent sequences: A034249 A034250 A034251 * A034253 A034254 A034255

Keyword

nonn

Author

N. J. A. Sloane.

Extensions

More terms from Sean A. Irvine, Aug 09 2020

Status

approved