

A185064


Numbers k such that a Golay sequence of length k exists.


11



1, 2, 4, 8, 10, 16, 20, 26, 32, 40, 52, 64, 80, 100
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OFFSET

1,2


COMMENTS

It is known that the sequence contains all numbers 2^i 10^j 26^m, and that all terms k > 1 are even and not divisible by any prime == 3 (mod 4). But the full characterization of these numbers is an open problem.


LINKS

Table of n, a(n) for n=1..14.
Dragomir Z. Dokovic, Equivalence classes and representatives of Golay sequences, Discrete Math. 189 (1998), no. 13, 7993. MR1637705 (99j:94031).


CROSSREFS

Cf. A208924A208929.
Sequence in context: A026169 A177931 A060378 * A036975 A287178 A093547
Adjacent sequences: A185061 A185062 A185063 * A185065 A185066 A185067


KEYWORD

nonn,nice,more


AUTHOR

N. J. A. Sloane, Mar 02 2012


STATUS

approved



