Question Number 158902 by mnjuly1970 last updated on 10/Nov/21
$$ \\ $$$$\:\:\:\:\:\:{nice}\:\:{mathematics} \\ $$$$\:\:\:\:\:\:\:#\:{calculate}\:# \\ $$$$\:\:\:\:\:\:\:\:\Omega\::=\:\underset{{n}=\mathrm{0}} {\overset{\infty} {\sum}}\frac{\:\mathrm{1}}{\left(\:\mathrm{6}{n}\:+\:\mathrm{1}\:\right)^{\:\mathrm{3}} }\:=\:? \\ $$$$\:\:\:\:\:\:−−−−−−−−−−−− \\ $$$$ \\ $$