Triangle of coefficients of characteristic polynomials of asymmetrical tridiagonal matrices: Middle diagonal: a=1; Lower first subdiagonal: b=2; Upper first subdiagonal: c=1; Example: M(3) {{1, 1, 0}, {2, 1, 1}, {0, 2, 1}}.
A136644
Triangle of coefficients of characteristic polynomials of asymmetrical tridiagonal matrices: Middle diagonal: a=1; Lower first subdiagonal: b=2; Upper first subdiagonal: c=1; Example: M(3) {{1, 1, 0}, {2, 1, 1}, {0, 2, 1}}.
Terms
- a(0) =1a(1) =1a(2) =-1a(3) =-1a(4) =-2a(5) =1a(6) =-3a(7) =1a(8) =3a(9) =-1a(10) =-1a(11) =8a(12) =0a(13) =-4a(14) =1a(15) =5a(16) =7a(17) =-14a(18) =-2a(19) =5a(20) =-1a(21) =7a(22) =-14a(23) =-21a(24) =20a(25) =5a(26) =-6a(27) =1a(28) =-3a(29) =-35
External references
- oeis: A136644