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A306792 Number of distinct eigenvalues of n X n matrices with elements {0, 1, 2}. 1
3, 25, 1027, 193244 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..4.

S. E. Thornton, Properties of the Bohemian family of n x n matrices with population {0, 1, 2}, Characteristic Polynomial Database.

CROSSREFS

Number of characteristic polynomials is in A272659.

Number of minimal polynomials is in A306783.

Sequence in context: A136516 A002021 A322063 * A012764 A219275 A101733

Adjacent sequences:  A306789 A306790 A306791 * A306793 A306794 A306795

KEYWORD

nonn,more,hard

AUTHOR

Steven E. Thornton, Mar 10 2019

STATUS

approved

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Last modified August 24 22:41 EDT 2019. Contains 326314 sequences. (Running on oeis4.)