$\frac{ {17}^{13} }{ 13 ! \times {e}^{17} }+\frac{ {e}^{-17} \times {17}^{14} }{ 14 ! }+\frac{ {e}^{-17} \times {17}^{15} }{ 15 ! }+\frac{ {e}^{-17} \times {17}^{16} }{ 16 ! }$

$\frac{ {17}^{13} }{ 13 ! \times {e}^{17} }+\frac{ {17}^{14} }{ 14 ! \times {e}^{17} }+\frac{ {e}^{-17} \times {17}^{15} }{ 15 ! }+\frac{ {e}^{-17} \times {17}^{16} }{ 16 ! }$

$\frac{ {17}^{13} }{ 13 ! \times {e}^{17} }+\frac{ {17}^{14} }{ 14 ! \times {e}^{17} }+\frac{ {17}^{15} }{ 15 ! \times {e}^{17} }+\frac{ {e}^{-17} \times {17}^{16} }{ 16 ! }$

$\frac{ {17}^{13} }{ 13 ! \times {e}^{17} }+\frac{ {17}^{14} }{ 14 ! \times {e}^{17} }+\frac{ {17}^{15} }{ 15 ! \times {e}^{17} }+\frac{ {17}^{16} }{ 16 ! \times {e}^{17} }$

$\frac{ {17}^{13} }{ 13 ! \times {e}^{17} }+\frac{ {17}^{14} }{ 14 \times 13 ! \times {e}^{17} }+\frac{ {17}^{15} }{ 15 ! \times {e}^{17} }+\frac{ {17}^{16} }{ 16 ! \times {e}^{17} }$

$\frac{ {17}^{13} }{ 13 ! \times {e}^{17} }+\frac{ {17}^{14} }{ 14 \times 13 ! \times {e}^{17} }+\frac{ {17}^{15} }{ 15 \times 14 \times 13 ! \times {e}^{17} }+\frac{ {17}^{16} }{ 16 ! \times {e}^{17} }$

$\frac{ 14 \times 15 \times 16 ! \times {17}^{13}+15 \times 16 ! \times {17}^{14}+16 ! \times {17}^{15}+14 \times 15 \times 13 ! \times {17}^{16} }{ 14 \times 15 \times 13 ! \times {e}^{17} \times 16 ! }$

$\frac{ 210 \times 16 ! \times {17}^{13}+15 \times 16 ! \times {17}^{14}+16 ! \times {17}^{15}+14 \times 15 \times 13 ! \times {17}^{16} }{ 14 \times 15 \times 13 ! \times {e}^{17} \times 16 ! }$

$\frac{ 210 \times 16 ! \times {17}^{13}+15 \times 20922789888000 \times {17}^{14}+16 ! \times {17}^{15}+14 \times 15 \times 13 ! \times {17}^{16} }{ 14 \times 15 \times 13 ! \times {e}^{17} \times 16 ! }$

$\frac{ 210 \times 16 ! \times {17}^{13}+15 \times 20922789888000 \times {17}^{14}+20922789888000 \times {17}^{15}+14 \times 15 \times 13 ! \times {17}^{16} }{ 14 \times 15 \times 13 ! \times {e}^{17} \times 16 ! }$

$\frac{ 210 \times 16 ! \times {17}^{13}+15 \times 20922789888000 \times {17}^{14}+20922789888000 \times {17}^{15}+\left( 13 ! \times 14 \times 15 \right) \times {17}^{16} }{ 14 \times 15 \times 13 ! \times {e}^{17} \times 16 ! }$

$\frac{ 210 \times 16 ! \times {17}^{13}+15 \times 20922789888000 \times {17}^{14}+20922789888000 \times {17}^{15}+\left( 13 ! \times 14 \times 15 \right) \times {17}^{16} }{ \left( 13 ! \times 14 \times 15 \right) \times 16 ! \times {e}^{17} }$

$\frac{ 210 \times 20922789888000 \times {17}^{13}+15 \times 20922789888000 \times {17}^{14}+20922789888000 \times {17}^{15}+\left( 13 ! \times 14 \times 15 \right) \times {17}^{16} }{ \left( 13 ! \times 14 \times 15 \right) \times 16 ! \times {e}^{17} }$

$\frac{ 210 \times 20922789888000 \times {17}^{13}+15 \times 20922789888000 \times {17}^{14}+20922789888000 \times {17}^{15}+15 ! \times {17}^{16} }{ \left( 13 ! \times 14 \times 15 \right) \times 16 ! \times {e}^{17} }$

$\frac{ 210 \times 20922789888000 \times {17}^{13}+15 \times 20922789888000 \times {17}^{14}+20922789888000 \times {17}^{15}+15 ! \times {17}^{16} }{ 15 ! \times 16 ! \times {e}^{17} }$

$\frac{ 210 \times 20922789888000 \times {17}^{13}+15 \times 20922789888000 \times {17}^{14}+20922789888000 \times {17}^{15}+1307674368000 \times {17}^{16} }{ 15 ! \times 16 ! \times {e}^{17} }$

$\frac{ 210 \times 20922789888000 \times {17}^{13}+15 \times 20922789888000 \times {17}^{14}+20922789888000 \times {17}^{15}+1307674368000 \times {17}^{16} }{ 1307674368000 \times 16 ! \times {e}^{17} }$

$\frac{ \left( 210 \times 20922789888000+15 \times 20922789888000 \times 17+20922789888000 \times {17}^{2}+1307674368000 \times {17}^{3} \right) \times {17}^{13} }{ 1307674368000 \times 16 ! \times {e}^{17} }$

$\frac{ \left( 4393785876480000+15 \times 20922789888000 \times 17+20922789888000 \times {17}^{2}+1307674368000 \times {17}^{3} \right) \times {17}^{13} }{ 1307674368000 \times 16 ! \times {e}^{17} }$

$\frac{ \left( 4393785876480000+5335311421440000+20922789888000 \times {17}^{2}+1307674368000 \times {17}^{3} \right) \times {17}^{13} }{ 1307674368000 \times 16 ! \times {e}^{17} }$

$\frac{ \left( 4393785876480000+5335311421440000+20922789888000 \times 289+1307674368000 \times {17}^{3} \right) \times {17}^{13} }{ 1307674368000 \times 16 ! \times {e}^{17} }$

$\frac{ \left( 4393785876480000+5335311421440000+20922789888000 \times 289+1307674368000 \times 4913 \right) \times {17}^{13} }{ 1307674368000 \times 16 ! \times {e}^{17} }$

$\frac{ \left( 9729097297920000+20922789888000 \times 289+1307674368000 \times 4913 \right) \times {17}^{13} }{ 1307674368000 \times 16 ! \times {e}^{17} }$

$\frac{ \left( 9729097297920000+6046686277632000+1307674368000 \times 4913 \right) \times {17}^{13} }{ 1307674368000 \times 16 ! \times {e}^{17} }$

$\frac{ \left( 9729097297920000+6046686277632000+6424604169984000 \right) \times {17}^{13} }{ 1307674368000 \times 16 ! \times {e}^{17} }$

$\frac{ \left( 15775783575552000+6424604169984000 \right) \times {17}^{13} }{ 1307674368000 \times 16 ! \times {e}^{17} }$

$\frac{ 22200387745536000 \times {17}^{13} }{ 1307674368000 \times 16 ! \times {e}^{17} }$

$\frac{ 16977 \times {17}^{13} }{ 16 ! \times {e}^{17} }$

$\frac{ 16977 \times {17}^{13} }{ 20922789888000{e}^{17} }$

$\begin{align*}&\frac{ 5659 \times {17}^{13} }{ 6974263296000{e}^{17} } \\&\approx0.332714\end{align*}$