How to optimise my example code

Question

So i made a programme which outputs Pascal's triangle until a certain row. The question i'm asking is whether this code is more or less optimal (length) or not and if not what can be done better.

CODE:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Until which row shall Pascal's triangle be created?");
int row= Convert.ToInt32( Console.ReadLine());

PasTri(row);
}

static void PasTri(int row){
int[,] tri= new int[row+1,row+1];
for (int i=0;i<=row;i++){
tri[i,0] =1;
tri[i,i] =1;
}

for (int i=2;i<=row;i++){
for (int j=1; j<i;j++){
tri[i,j] =tri[i-1,j-1]+tri[i-1,j];
}
}
for (int i=0;i<=row;i++){
for (int j=0;j<=i;j++){
Console.Write(tri[i,j]+" ");
}
Console.WriteLine();
}
}
}
}

Answer 1

I'm not sure where the problem is. I mean it's not a long code with a lot of statements and stuff so you don't need to optimize this code. I'm not even sure if you can indeed optimize this code better than it is right now