OFFSET
0,4
LINKS
Wikipedia, Toeplitz Matrix.
FORMULA
a(n) <= (n-1)! for n > 0.
MATHEMATICA
a[n_]:=CountDistinct[Table[Det[ToeplitzMatrix[Join[{1}, Part[Permutations[Range[n-1]], i]]]], {i, (n -1)!}]]; Join[{1}, Array[a, 10]]
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Stefano Spezia, Jul 14 2024
STATUS
approved