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%I #9 Mar 13 2019 03:33:04
%S 3,78,19068,42300060
%N Number of non-derogatory n X n matrices with elements {0, 1, 2}.
%H Encyclopedia of Math, <a href="https://www.encyclopediaofmath.org/index.php/Non-derogatory_matrix">Non-derogatory matrix</a>
%H S. E. Thornton, <a href="http://www.bohemianmatrices.com/cpdb/unstructured/nstructured_0_1_2">Properties of the Bohemian family of n x n matrices with population {0, 1, 2}</a>, Characteristic Polynomial Database.
%Y Number of characteristic polynomials is in A272659.
%Y Number of minimal polynomials is in A306783.
%K nonn,more,hard
%O 1,1
%A _Steven E. Thornton_, Mar 11 2019