Making a number pattern with a loop

I want to make a number pattern with a loop like this one:
Attachment 33131

I have now only this:
public partial class index : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{


string c = "";
for (int i = 1; i < 10; i++)
{
lbforloop.Items.Add(c + i++ + i.ToString());
c += " ";
}
}
}

No one can help me with this??

Well you did not tell us what kind of problem you are actually having.
You also did not ask a question until the second post and that one is a simple yes or no.

So yes someone can help you but you first need to let us know what problem you are having or ask a specific question. What you have posted looks more like an indirect request that someone do it for you