A triangle of matrix polynomials: m(n)=antisymmeticmatix(n).Transpose[antisymmeticmatix(n)].

Terms

a(0) =1a(1) =0a(2) =-1a(3) =1a(4) =-2a(5) =1a(6) =0a(7) =-9a(8) =6a(9) =-1a(10) =1a(11) =-12a(12) =38a(13) =-12a(14) =1a(15) =0a(16) =-25a(17) =100a(18) =-110a(19) =20a(20) =-1a(21) =1a(22) =-30a(23) =255a(24) =-452a(25) =255a(26) =-30a(27) =1a(28) =0a(29) =-49