login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

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.
4
1, 0, 2, 86, 5911, 652189, 82173814
OFFSET
0,3
EXAMPLE
a(2) = 2:
[1, 0;
0, 2]
a(3) = 86:
[0, 3, 4;
3, 1, 5;
4, 5, 2]
CROSSREFS
Cf. A358806 (minimal), A358808 (minimal permanent), A358809 (maximal permanent).
Sequence in context: A316379 A306139 A317372 * A177318 A280551 A283945
KEYWORD
nonn,hard,more
AUTHOR
Stefano Spezia, Dec 02 2022
STATUS
approved