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A358486 a(n) is the minimal permanent of an n X n matrix using the integers 0 to n^2 - 1.

%I A358486 #7 Nov 19 2022 20:28:10
%S A358486 1,0,2,128,18948,40179728,2863042492
%N A358486 a(n) is the minimal permanent of an n X n matrix using the integers 0 to n^2 - 1.
%e A358486 a(3) = 128:
%e A358486      [0, 1, 2;
%e A358486       4, 6, 8;
%e A358486       3, 5, 7]
%Y A358486 Cf. A350565 (integers 1 to n^2), A358487 (maximal).
%K A358486 nonn,hard,more
%O A358486 0,3
%A A358486 _Stefano Spezia_, Nov 18 2022
%E A358486 a(4)-a(6) from _Hugo Pfoertner_, Nov 19 2022