1,1

Table of n, a(n) for n=1..6.

S. E. Thornton, Properties of the Bohemian family of n x n matrices with population {0, 1}, Characteristic Polynomial Database.

Number of distinct eigenvalues is in A306784.

Number of characteristic polynomials is in A272661.

Number of minimal polynomials is in A306781.

Sequence in context: A277480 A108800 A325507 * A326359 A136639 A284594

Adjacent sequences: A306790 A306791 A306792 * A306794 A306795 A306796

nonn,more,hard

Steven E. Thornton, Mar 10 2019

approved