login
Number of distinct real eigenvalues of n X n matrices with elements {0, 1}.
1

%I #8 Mar 11 2019 04:11:18

%S 2,6,28,370,13403,1535679

%N Number of distinct real eigenvalues of n X n matrices with elements {0, 1}.

%H S. E. Thornton, <a href="http://www.bohemianmatrices.com/cpdb/unstructured/unstructured_0_1">Properties of the Bohemian family of n x n matrices with population {0, 1}</a>, Characteristic Polynomial Database.

%Y Number of distinct eigenvalues is in A306784.

%Y Number of characteristic polynomials is in A272661.

%Y Number of minimal polynomials is in A306781.

%K nonn,more,hard

%O 1,1

%A _Steven E. Thornton_, Mar 10 2019