This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A358323 #12 Nov 16 2022 08:54:35 %S A358323 1,0,-1,-7,-60,-1210,-34020,-607332,-30448441,-1093612784, %T A358323 -55400732937,-2471079070511,-197500419383964 %N A358323 a(n) is the minimal determinant of an n X n symmetric Toeplitz matrix using the integers 0 to n - 1. %H A358323 Lucas A. Brown, <a href="https://github.com/lucasaugustus/oeis/blob/main/A358323%2B4%2B5.py">A358323+4+5.py</a>. %H A358323 Wikipedia, <a href="http://en.wikipedia.org/wiki/Toeplitz_matrix">Toeplitz Matrix</a> %e A358323 a(3) = -7: %e A358323 [1, 2, 0; %e A358323 2, 1, 2; %e A358323 0, 2, 1] %e A358323 a(4) = -60: %e A358323 [2, 3, 0, 1; %e A358323 3, 2, 3, 0; %e A358323 0, 3, 2, 3; %e A358323 1, 0, 3, 2] %e A358323 a(5) = -1210: %e A358323 [4, 3, 0, 2, 1; %e A358323 3, 4, 3, 0, 2; %e A358323 0, 3, 4, 3, 0; %e A358323 2, 0, 3, 4, 3; %e A358323 1, 2, 0, 3, 4] %t A358323 Join[{1}, Table[Min[Table[Det[ToeplitzMatrix[Part[Permutations[Join[{0}, Range[n-1]]], i]]],{i,n!}]],{n,9}]] %Y A358323 Cf. A350953. %Y A358323 Cf. A358324 (maximal), A358325 (minimal nonzero absolute value), A358326 (minimal permanent), A358327 (maximal permanent). %K A358323 sign,hard,more %O A358323 0,4 %A A358323 _Stefano Spezia_, Nov 09 2022 %E A358323 a(10)-a(12) from _Lucas A. Brown_, Nov 16 2022