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A306816 Number of non-derogatory n X n matrices with elements {-1, 1}. 0
2, 16, 472, 57456, 29025984 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..5.

Encyclopedia of Math, Non-derogatory matrix

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.

Sequence in context: A223563 A140309 A201383 * A012461 A012458 A012171

Adjacent sequences:  A306813 A306814 A306815 * A306817 A306818 A306819

KEYWORD

nonn,more,hard

AUTHOR

Steven E. Thornton, Mar 11 2019

STATUS

approved

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Last modified September 28 13:24 EDT 2020. Contains 337393 sequences. (Running on oeis4.)