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A358570 a(n) is the maximal permanent of an n X n Toeplitz matrix using the integers 0 to 2*(n - 1).

%I A358570 #12 Dec 30 2023 23:46:19
%S A358570 1,0,4,121,6109,494610,58369622
%N A358570 a(n) is the maximal permanent of an n X n Toeplitz matrix using the integers 0 to 2*(n - 1).
%C A358570 Also maximal permanent of an n X n Hankel matrix using the integers 0 to 2*(n - 1). - _Stefano Spezia_, Dec 22 2023
%H A358570 Lucas A. Brown, <a href="https://github.com/lucasaugustus/oeis/blob/main/A358569%2B70.sage">Sage program</a>.
%H A358570 Wikipedia, <a href="http://en.wikipedia.org/wiki/Toeplitz_matrix">Toeplitz Matrix</a>
%e A358570 a(2) = 4:
%e A358570     [2, 0;
%e A358570      1, 2]
%e A358570 a(3) = 121:
%e A358570     [4, 2, 1;
%e A358570      3, 4, 2;
%e A358570      0, 3, 4]
%Y A358570 Cf. A350938 (integers from 1 to 2*n - 1), A358567 (minimal determinant), A358568 (maximal determinant), A358569 (minimal).
%K A358570 nonn,hard,more
%O A358570 0,3
%A A358570 _Stefano Spezia_, Nov 22 2022
%E A358570 a(5)-a(6) from _Lucas A. Brown_, Dec 03 2022