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

2, 40, 6960, 10340736, 129599358720, 13527918439695360

Offset: 1

Author

Steven E. Thornton, Mar 12 2019

Keywords

• nonn
• more
• hard

Links

• S. E. Thornton, Properties of the Bohemian family of n x n matrices with population {-1, 0, 1}, Characteristic Polynomial Database.
• Minfeng Wang, C++ program to calculate A306839

Extensions

a(1)-a(5) confirmed and a(6) added by Minfeng Wang, May 01 2024