Ta có hệ pt
$\left\{\begin{array}{l}1+a+b+c+d+e=-1\\-1+a-b+c-d+e=-1\\32+16a+8b+4c+2d+e=6017\\e=-2007\\243+81a+27b+9c+3d+e=16047\end{array}\right. \Leftrightarrow \left\{\begin{array}{l}a=-5\\b=5\\c=2011\\d=-6\\e=-2007\end{array}\right.$
Từ đó suy ra: $P(x)=x^5-5x^4+5x^3+2011x^2-6x-2007$
$\Rightarrow P(14)=751529; P(211)=408453102959$