This site is supported by donations to The OEIS Foundation.



(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A036297 Number of Hadamard matrices of order n. 9


%S 1,1,1,0,1,0,0,0,1,0,0,0,1,0,0,0,5,0,0,0,3,0,0,0,60,0,0,0,487,0,0,0,

%T 13710027,0,0,0

%N Number of Hadamard matrices of order n.

%D See A007299 for references.

%H See A007299 for links.

%H <a href="/index/Ha#Hadamard">Index entries for sequences related to Hadamard matrices</a>

%H <a href="/index/De#determinants">Index entries for sequences related to maximal determinants</a>

%Y A007299 is the main entry for this sequence. Cf. A003432.

%K hard,nonn,nice

%O 0,17

%A _N. J. A. Sloane_.

%E a(32) from the H. Kharaghani and B. Tayfeh-Rezaie paper. - _N. J. A. Sloane_, Feb 11 2012

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 February 22 01:34 EST 2019. Contains 320381 sequences. (Running on oeis4.)