A358807 a(n) is the maximal determinant of an n X n symmetric matrix using all the integers from 0 to n*(n + 1)/2 - 1.

1, 0, 2, 86, 5911, 652189, 82173814

Offset: 0

Author

Stefano Spezia, Dec 02 2022

Keywords

• nonn
• hard
• more

Examples

			a(2) = 2:
    [1, 0;
     0, 2]
a(3) = 86:
    [0, 3, 4;
     3, 1, 5;
     4, 5, 2]
		

Crossrefs

Cf. A000217, A351148, A351153.

Cf. A358806 (minimal), A358808 (minimal permanent), A358809 (maximal permanent).