A306784 Number of distinct eigenvalues of n X n matrices with elements {0, 1}.

2, 6, 46, 664, 28129, 3522087

Offset

1,1

Links

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.

Crossrefs

Number of characteristic polynomials is in A272661.

Sequence in context: A078603 A316073 A001587 * A078537 A145502 A274702

Adjacent sequences: A306781 A306782 A306783 * A306785 A306786 A306787

Keyword

nonn,more,hard

Author

Steven E. Thornton, Mar 09 2019

Status

approved