OFFSET
0,4
LINKS
EXAMPLE
a(3) = -7:
[1, 2, 0;
2, 1, 2;
0, 2, 1]
a(4) = -60:
[2, 3, 0, 1;
3, 2, 3, 0;
0, 3, 2, 3;
1, 0, 3, 2]
a(5) = -1210:
[4, 3, 0, 2, 1;
3, 4, 3, 0, 2;
0, 3, 4, 3, 0;
2, 0, 3, 4, 3;
1, 2, 0, 3, 4]
MATHEMATICA
Join[{1}, Table[Min[Table[Det[ToeplitzMatrix[Part[Permutations[Join[{0}, Range[n-1]]], i]]], {i, n!}]], {n, 9}]]
CROSSREFS
KEYWORD
sign,hard,more
AUTHOR
Stefano Spezia, Nov 09 2022
EXTENSIONS
a(10)-a(12) from Lucas A. Brown, Nov 16 2022
STATUS
approved