login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A263627 Number of Seidel matrices of order n with minimal eigenvalue -5. 0

%I

%S 0,0,0,0,0,1,2,8,33,306,6727,219754

%N Number of Seidel matrices of order n with minimal eigenvalue -5.

%H G. Greaves, J. H. Koolen, A. Munemasa, F. Szöllősi, <a href="http://arxiv.org/abs/1403.2155">Equiangular lines in Euclidean spaces</a>, arXiv:1403.2155 [math.CO], 2014.

%K nonn,more

%O 1,7

%A _N. J. A. Sloane_, Oct 24 2015

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 30 00:41 EDT 2020. Contains 333117 sequences. (Running on oeis4.)