A306839 Number of unimodular n X n matrices with elements {-1, 0, 1}.

2, 40, 6960, 10340736, 129599358720

Offset

1,1

Links

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

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

Crossrefs

Sequence in context: A328553 A162868 A059476 * A297385 A261429 A062769

Adjacent sequences: A306836 A306837 A306838 * A306840 A306841 A306842

Keyword

nonn,more,hard

Author

Steven E. Thornton, Mar 12 2019

Status

approved