I've read the book of cyber security and saw the notation below.
$$ \mathbb{Z_{n}} ~~\leftrightarrow~~ \text{set of integers which satisfy }~ 0 \leq i < n $$
And what I want to represent is the set of natural integers equal or greater than 1 and less than n+1
$$ ~~~\uparrow \left( 1 \leq i \leq n \right) ~$$
Is there some good notation(s)?
Can I write it as $~ \mathbb{N_{n+1}} ~$ ? which notation is correct?
I know using $~ \mathbb{Z_{n+1}} \setminus \left\{ 0 \right\} ~$ is one of the ways but seemingly bit complicated for me.