A271587 Number of distinct minimal polynomials of n X n matrices with elements {-1, 0, +1}.

3, 19, 220, 8924

Offset

1,1

References

Steven E. Thornton & Robert M. Corless, The Bohemian Eigenvalue Project, Poster Presented at The International Symposium on Symbolic and Algebraic Computation (ISSAC 2016). Wilfrid Laurier University, July 19-22, 2016.

Links

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

Robert Corless and Steven Thornton, The Bohemian Eigenvalue Project, 2017 poster.

Steven E. Thornton, GitHub repository for code used to generate this sequence.

Crossrefs

Number of characteristic polynomials A272658.

Sequence in context: A001035 A267634 A277407 * A217906 A166380 A136652

Adjacent sequences: A271584 A271585 A271586 * A271588 A271589 A271590

Keyword

nonn,more,hard

Author

Steven E. Thornton, Jul 13 2016

Status

approved