Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of min(i(i+1)/2, j(j+1)/2) (A106255).

A204024

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of min(i(i+1)/2, j(j+1)/2) (A106255).

Terms

    a(0) =1a(1) =-1a(2) =2a(3) =-4a(4) =1a(5) =6a(6) =-16a(7) =10a(8) =-1a(9) =24a(10) =-76a(11) =70a(12) =-20a(13) =1a(14) =120a(15) =-428a(16) =496a(17) =-224a(18) =35a(19) =-1a(20) =720a(21) =-2808a(22) =3808a(23) =-2260a(24) =588a(25) =-56a(26) =1a(27) =5040a(28) =-21096a(29) =32152

External references