The OEIS is supported by the many generous donors to the OEIS Foundation.


(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A185064 Numbers k such that a Golay sequence of length k exists. 11


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

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

%C 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.

%H Dragomir Z. Dokovic, <a href="http://dx.doi.org/10.1016/S0012-365X(98)00034-X">Equivalence classes and representatives of Golay sequences</a>, Discrete Math. 189 (1998), no. 1-3, 79-93. MR1637705 (99j:94031).

%Y Cf. A208924-A208929.

%K nonn,nice,more

%O 1,2

%A _N. J. A. Sloane_, Mar 02 2012

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 27 18:31 EDT 2023. Contains 361575 sequences. (Running on oeis4.)