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A306838 Number of different values taken by the determinant of a real (-1,0,1) matrix of order n. 0
1, 3, 5, 9, 25, 67 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..5.

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

CROSSREFS

Number of matrices having maximum determinant is in A051753.

Sequence in context: A251413 A039774 A114001 * A171879 A171877 A004044

Adjacent sequences:  A306835 A306836 A306837 * A306839 A306840 A306841

KEYWORD

nonn,more,hard

AUTHOR

Steven E. Thornton, Mar 12 2019

STATUS

approved

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Last modified August 5 22:11 EDT 2020. Contains 336214 sequences. (Running on oeis4.)