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A306784 Number of distinct eigenvalues of n X n matrices with elements {0, 1}. 1
2, 6, 46, 664, 28129, 3522087 (list; graph; refs; listen; history; text; internal format)
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

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Last modified September 21 00:38 EDT 2020. Contains 337265 sequences. (Running on oeis4.)