A368354 a(n) is the maximal determinant of an n X n Hankel matrix using the integers 0 to 2*(n - 1).

1, 0, 2, 31, 1781, 58180

Offset

0,3

Comments

a(6) >= 2189560.

Links

Table of n, a(n) for n=0..5.

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

Adjacent sequences: A368351 A368352 A368353 * A368355 A368356 A368357

Keyword

nonn,hard,more

Author

Stefano Spezia, Dec 22 2023

Status

approved