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Number of non-derogatory n X n matrices with elements {-1, 1}.

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`%I #11 Mar 13 2019 03:32:42
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`%S 2,16,472,57456,29025984
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`%N Number of non-derogatory n X n matrices with elements {-1, 1}.
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`%H Encyclopedia of Math, <a href="https://www.encyclopediaofmath.org/index.php/Non-derogatory_matrix">Non-derogatory matrix</a>
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`%H S. E. Thornton, <a href="http://www.bohemianmatrices.com/cpdb/unstructured/unstructured_n1_1">Properties of the Bohemian family of n x n matrices with population {-1, 1}</a>, Characteristic Polynomial Database.
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`%Y Number of characteristic polynomials is in A272662.
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`%Y Number of minimal polynomials is in A306782.
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`%K nonn,more,hard
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`%O 1,1
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`%A _Steven E. Thornton_, Mar 11 2019
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