Question Number 138624 by Dwaipayan Shikari last updated on 15/Apr/21
$$\frac{\mathrm{1}^{\pi} }{\mathrm{3}!}+\frac{\mathrm{2}^{\pi} }{\mathrm{5}!}+\frac{\mathrm{3}^{\pi} }{\mathrm{7}!}+\frac{\mathrm{4}^{\pi} }{\mathrm{9}!}+\frac{\mathrm{5}^{\pi} }{\mathrm{11}!}+… \\ $$