The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A306839 Number of unimodular n X n matrices with elements {-1, 0, 1}. 0
2, 40, 6960, 10340736, 129599358720 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
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
KEYWORD
nonn,more,hard
AUTHOR
Steven E. Thornton, Mar 12 2019
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 13 05:16 EDT 2024. Contains 372498 sequences. (Running on oeis4.)