A density plot in the complex plane of the Bohemian eigenvalues of a sample of 10 million 19x19 (p=18) doubly companion matrices: [−α1−α2⋯−αp−αp+1−βp+110⋯0−βp01⋯0−βp−1⋮⋮⋱⋮⋮00⋯1−β1] with αk∈{−1,1}, and βk∈{−1,1}. Color represents the eigenvalue density and the plot is viewed on [-1.7-1.7i, 1.7+1.7i].
