[Tex/LaTex] mathbb generates strange characters for numbers and greek letters

Question

I'm simply compiling this code

\documentclass{article}
\usepackage{amssymb}             % AMS Math

\begin{document}

\begin{equation}\label{eee}
\mathbb{R} \mathbb{A}  \mathbb{1}  \mathbb{\Omega} 
\end{equation}

\end{document} 

The output is really strange. What is going on with amssymb package?

Answer 1

You can declare both fonts, I called them \amsmathbb and \mathbb here:

\documentclass{article}

\usepackage{mathbbol}
\usepackage{amssymb}             % AMS Math

\DeclareSymbolFontAlphabet{\amsmathbb}{AMSb}%

\begin{document}

\begin{equation}\label{eee}
\amsmathbb{R} \amsmathbb{A}  \mathbb{1}  \mathbb{\Omega} 
\end{equation}

\end{document}