Fonts & Character Sets ⇒ How to write # inside a circle

[ajimenez]

I would be very grateful if you could help me with the next question.
It is well known for mathematicians that the algebraic tensor product of two Banach spaces X and Y is denoted as $X\otimes Y$.
I wish to define a new product tensor with the symbol # inside a circle. I define:

Code: Select all

\newcommand*\mycirc[1]{
\begin{tikzpicture}
{\node[draw,circle,inner sep=-1pt]{#1};}
\end{tikzpicture}}

\def\Ltp{\,\mycirc{\scriptsize{\#}}\,}

If I write $X\Ltp Y$, the result in print is good, but it is not very perfect.

¿Could you improve it?

Many thanks