%I #7 Sep 08 2019 05:27:30
%S 0,324,38831,6773999,1859163031
%N Smallest nonnegative number not expressible as determinant of an n X n matrix with elements 1..n^2.
%H Hugo Pfoertner, <a href="http://www.randomwalk.de/sequences/a088238.txt">Find all possible values of det(A) for matrix with elements 1..n^2.</a> FORTRAN program.
%e a(2)=0 because the 2 X 2 determinant of a matrix with entries that are permutations of 1,2,3,4 can only assume the values +-2,+-5,+-10.
%Y a(3)=A088214(1), a(4)=A088237(1), a(5)=A088238(1), a(6)=A325900(1).
%Y Cf. A085000, A088215, A088217, A322576.
%K nonn,more,hard
%O 2,2
%A _Hugo Pfoertner_, Sep 23 2003
%E a(6) from _Hugo Pfoertner_, Sep 07 2019