Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of A115255 (in square format); by antidiagonals.

A203005

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of A115255 (in square format); by antidiagonals.

Terms

    a(0) =1a(1) =-1a(2) =1a(3) =-6a(4) =1a(5) =1a(6) =-15a(7) =47a(8) =-1a(9) =1a(10) =-40a(11) =270a(12) =-488a(13) =1a(14) =1a(15) =-165a(16) =1738a(17) =-5866a(18) =5829a(19) =-1a(20) =1a(21) =-1074a(22) =15695a(23) =-80060a(24) =156495a(25) =-74674a(26) =1a(27) =1a(28) =-9039a(29) =181581

External references