Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix from A204114, given by gcd(L(i+1), L(j+1)), where L=A000032 (Lucas numbers).

A204115

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix from A204114, given by gcd(L(i+1), L(j+1)), where L=A000032 (Lucas numbers).

Terms

    a(0) =1a(1) =-1a(2) =2a(3) =-4a(4) =1a(5) =6a(6) =-16a(7) =8a(8) =-1a(9) =36a(10) =-108a(11) =69a(12) =-15a(13) =1a(14) =360a(15) =-1152a(16) =834a(17) =-230a(18) =26a(19) =-1a(20) =5280a(21) =-17696a(22) =14368a(23) =-4668a(24) =682a(25) =-44a(26) =1a(27) =147840a(28) =-506048a(29) =426568

External references