A264605 Number of self-dual negacyclic codes of length 4n over GF(3), where 4n runs through the numbers congruent to 4 or 8 mod 12 (cf. A092259).

2, 2, 2, 8, 8, 2, 32, 8, 32, 8, 2, 8, 8, 32, 8, 8, 32, 32, 8, 8, 8, 2, 32, 512, 32, 8, 32, 2048, 8, 8, 8, 8, 32, 512

Offset

1,1

Links

Table of n, a(n) for n=1..34.

Amita Sahni and Poonam Trama Sehgal, Enumeration of self-dual and self-orthogonal negacyclic codes over finite fields, Advances in Mathematics of Communications, Volume 9, No. 4, 2015, 437-447.

Crossrefs

Cf. A092259.

Sequence in context: A185811 A011140 A171715 * A353245 A275928 A221072

Adjacent sequences: A264602 A264603 A264604 * A264606 A264607 A264608

Keyword

nonn,more

Author

N. J. A. Sloane, Nov 24 2015

Status

approved