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A306839
Number of unimodular n X n matrices with elements {-1, 0, 1}.
1
2, 40, 6960, 10340736, 129599358720, 13527918439695360
OFFSET
1,1
CROSSREFS
Sequence in context: A328553 A162868 A059476 * A297385 A261429 A062769
KEYWORD
nonn,more,hard
AUTHOR
Steven E. Thornton, Mar 12 2019
EXTENSIONS
a(1)-a(5) confirmed and a(6) added by Minfeng Wang, May 01 2024
STATUS
approved