Explanation :
If n=6 then output will be
1
1 2 3
1 2 3 4 5
1 2 3 4 5 6 7
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9 10 11 .
Code:
import java.util.Scanner;public class Pattern20
{
public static void main( String args[])
{
System.out.print("Enter the number of rows:");
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
int i,j,k;
for (i=1; i<=n; i++)
{
for (j=1; j<=n-i; j++)
{
System.out.printf(" ");
}
for (k=1; k<=2*i-1; k++)
{
System.out.printf(" %d ",k);
}
System.out.printf("\n");
}
sc.close();
}
}
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