Difference between number of even equivalence classes and odd classes of terms in a symmetric determinant of order n.

A059422

Difference between number of even equivalence classes and odd classes of terms in a symmetric determinant of order n.

Terms

    a(0) =1a(1) =1a(2) =0a(3) =-1a(4) =-1a(5) =3a(6) =-2a(7) =25a(8) =-213a(9) =1547a(10) =-13276a(11) =129069a(12) =-1375775a(13) =16009741a(14) =-202184274a(15) =2753591087a(16) =-40231298023a(17) =627731583225

External references