deletions | additions       diff --git a/untitled.tex b/untitled.tex  index 3e327ad..84b39cb 100644  --- a/untitled.tex  +++ b/untitled.tex 
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G_3(z)=G_2(z)(1+z)\\  G_5(z)=\frac{G_2(z)^2}{G_3(z)}(1+4z+z^2)  \end{equation}  The next sequence is the 7-rough numbers \begin{equation}  \frac{z(1+6z+4z^2+2z^3+4z^4+2z^5+4z^6+6z^7+z^8)}{(1+z)(z^2+1)(z^4+1)(z-1)^2}  \end{equation}