A306791 Number of distinct eigenvalues of n X n matrices with elements {-1, 1}.

2, 9, 35, 335, 7709, 510743

Offset: 1

Author

Steven E. Thornton, Mar 10 2019

Keywords

• nonn
• more
• hard

Links

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

Crossrefs

Number of characteristic polynomials is in A272662.

Number of minimal polynomials is in A306782.