C Program Pattern23

 #include<stdio.h>

#include<conio.h>

void main()

{

int i, j, no;

clrscr();

printf("Enter number: ");

scanf("%d", &no);

printf("1 \n");

for(i=1; i<=no-1; i++)

{

printf("1 ");

for(j=1; j<=i; j++)

{

printf("%d ", j*5);

}

printf("\n");

}

getch();

}

/*

Output:

Enter number: 5

1

1 5

1 5 10

1 5 10 15

1 5 10 15 20

*/