Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of min{2i+j-2,2j+i-2} (A204006).

A204007

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of min{2i+j-2,2j+i-2} (A204006).

Terms

    a(0) =1a(1) =-1a(2) =0a(3) =-5a(4) =1a(5) =-1a(6) =-1a(7) =12a(8) =-1a(9) =-2a(10) =7a(11) =5a(12) =-22a(13) =1a(14) =-3a(15) =19a(16) =-28a(17) =-15a(18) =35a(19) =-1a(20) =-4a(21) =35a(22) =-99a(23) =84a(24) =35a(25) =-51a(26) =1a(27) =-5a(28) =55a(29) =-220

External references