The following program will print numbers as pyramid. 

The sequence will be  printed as specified in the below triangle format. If user enter number of rows as 5 then following output will be produced. 
             0
          1 0 1
       2 1 0 1 2
    3 2 1 0 1 2 3
 4 3 2 1 0 1 2 3 4

Program to Print Pyramid of Numbers

include

include

int main()
{
int rows, space, i, j;

printf("Enter number of rows: ");// enter a number for generating the pyramid
scanf("%d",&rows);

for(i=0; i<rows; i++)         // outer loop for displaying rows
{
    for(space=1; space <= rows-i; space++)  // space for each and every element
        printf("  ");

    for(j=0-i; j <= i; j++) //inner loop for displaying the pyramid of numbers
    {

        printf("%2d",abs(j));   // prints the value

    }
    printf("\n");         // every line in different row
}

getch();

}

OUTPUT for Pyramid of Numbers

Enter number of rows: 5
0
1 0 1
2 1 0 1 2
3 2 1 0 1 2 3
4 3 2 1 0 1 2 3 4