Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of {(i+j)*min(i,j)} (A203990).

A203991

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of {(i+j)*min(i,j)} (A203990).

Terms

    a(0) =2a(1) =-1a(2) =7a(3) =-10a(4) =1a(5) =38a(6) =-71a(7) =28a(8) =-1a(9) =281a(10) =-610a(11) =357a(12) =-60a(13) =1a(14) =2634a(15) =-6329a(16) =4620a(17) =-1253a(18) =110a(19) =-1a(20) =29919a(21) =-77530a(22) =65613a(23) =-23348a(24) =3514a(25) =-182a(26) =1a(27) =399342a(28) =-1098271a(29) =1036044

External references