## Write "C"  program to print below Number pattern 17: To understand this example, you should have knowledge of the following topics:
·      C programming operators
C Number pattern 17 program using For loop:
```
#include<stdio.h>
int main()
{
int i,j,k;
for(i=1;i<=5;i++)
{
if(i%2==0)
{
k=2;
}
else
{
k=1;
}
for(j=1;j<=i;j++,k+=2)
{
printf("%d ", k);
}
printf("\n");
}
return 0;
}
```
Output:
`1`
`24`
`135`
`2468`
`13579`
Explanation:
• First two integers "i", and "j" are declared of type int.
• Then in the First for loop “i” value is initialized with a value 5.
• Now “i” value is checked with the condition i <= 5 that is (1 <= 5). So the condition is True.
• Now Loop check if condition "i % 2" if the condition is True k value becomes "2" if the condition is false K value becomes "1"
• Now the loop enters into second for loop and checks the condition j <= i. Where "j = 1". and the condition is True print the value of "k".
• The value of "j" prints up to condition becomes False.
• Now the value of "i" will be incremented by the condition "i = i++" and executes the loop.
• when the value of "i"  becomes "6" the program terminates.