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A368354 a(n) is the maximal determinant of an n X n Hankel matrix using the integers 0 to 2*(n - 1). 3
1, 0, 2, 31, 1781, 58180 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
a(6) >= 2189560.
LINKS
Wikipedia, Hankel matrix.
EXAMPLE
a(2) = 2:
2, 0;
0, 1.
a(3) = 31:
1, 4, 2;
4, 2, 3;
2, 3, 0.
a(4) = 1781:
1, 2, 5, 6;
2, 5, 6, 0;
5, 6, 0, 4;
6, 0, 4, 3.
CROSSREFS
Cf. A368353 (minimal), A368355 (maximal absolute value).
Cf. A358569 (minimal permanent), A358570 (maximal permanent).
Sequence in context: A246969 A358567 A134646 * A197320 A239332 A350940
KEYWORD
nonn,hard,more
AUTHOR
Stefano Spezia, Dec 22 2023
STATUS
approved

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Last modified July 18 10:00 EDT 2024. Contains 374378 sequences. (Running on oeis4.)