[ 0 1 ] [ 5/4 ] [ 1/4 ] [ -3/2 ] 
f(z) = 32/15*z^3 - 47/15*z + 1
*
[ -6/7 ] [ 2/21 4/7 ] [ 4/21 ] [ 2/3 ] 
2/7 | 0.15423764786635879881212147398047449445 | 0.025330351643210714993957325076353873273
f(z) = 147/16*z^3 - 55/12*z + 1
*
TOTAL: 2