# Python Program to Print Series 2 ,15, 41, 80…n

In the previous article, we have discussed Python Program to Print Series 1 9 17 33 49 73 97 …N
Given a number N (Limit) and the task is to print the series ( 2,15,41,80…N) till the given number N in Python.

Examples:

Example1:

Input:

Given Number(limit) = 15

Output:

The above series till the given number{ 15 } is :
2 15 41 80 132 197 275 366 470 587 717 860 1016 1185 1367

Example2:

Input:

Given Number(limit) = 20

Output:

The above series till the given number{ 20 } is :
2 15 41 80 132 197 275 366 470 587 717 860 1016 1185 1367 1562 1770 1991 2225 2472

## Program to Print Series 2,15,41,80…n in Python

Below are the ways to print the series ( 2,15,41,80…N) till the given number N in Python:

### Method #1: Using While Loop (Static Input)

Approach:

• Give the number N (limit) as static input and store it in a variable.
• Take a variable to say itr and initialize its value to 1.
• Take another variable say valu and initialize its value to 2.
• Loop until the above-declared variable itr value is less than or equal to theÂ given number using the while loop.
• Inside the loop, print the value of the above variable valu separated by spaces.
• Multiply the value of itr with 13 and add the result to the valu.
• Store the above result in the same variable valu.
• Increment the above itr value by 1.
• The Exit of the Program.

Below is the implementation:

# Give the number N (limit)as static input and store it in a variable.
gvn_numb = 15
# Take a variable to say itr and initialize its value to 1.
itr = 1
# Take another variable say valu and initialize its value to 2.
valu=2
print("The above series till the given number{", gvn_numb, "} is :")
# Loop until the above-declared variable itr value is less than or equal to the
# given number using the while loop.
while(itr<=gvn_numb):
#Inside the loop, print the value of the above variable valu
#separated by spaces.
print(valu,end=" ")
#Multiply the value of itr with 13 and add the result to the valu.
#Store the above result in the same variable valu.
valu+=itr*13
#Increment the above itr value by 1.
itr+=1

Output:

The above series till the given number{ 15 } is :
2 15 41 80 132 197 275 366 470 587 717 860 1016 1185 1367

### Method #2: Using While loop (User Input)

Approach:

• Give the number N (limit) as user input using the int(input()) function and store it in a variable.
• Take a variable to say itr and initialize its value to 1.
• Take another variable say valu and initialize its value to 2.
• Loop until the above-declared variable itr value is less than or equal to theÂ given number using the while loop.
• Inside the loop, print the value of the above variable valu separated by spaces.
• Multiply the value of itr with 13 and add the result to the valu.
• Store the above result in the same variable valu.
• Increment the above itr value by 1.
• The Exit of the Program.

Below is the implementation:

# Give the number N (limit) as user input using the int(input()) function and
# store it in a variable.
gvn_numb = int(input("Enter some Random Number = "))
# Take a variable to say itr and initialize its value to 1.
itr = 1
# Take another variable say valu and initialize its value to 2.
valu=2
print("The above series till the given number{", gvn_numb, "} is :")
# Loop until the above-declared variable itr value is less than or equal to the
# given number using the while loop.
while(itr<=gvn_numb):
#Inside the loop, print the value of the above variable valu
#separated by spaces.
print(valu,end=" ")
#Multiply the value of itr with 13 and add the result to the valu.
#Store the above result in the same variable valu.
valu+=itr*13
#Increment the above itr value by 1.
itr+=1

Output:

Enter some Random Number = 20
The above series till the given number{ 20 } is :
2 15 41 80 132 197 275 366 470 587 717 860 1016 1185 1367 1562 1770 1991 2225 2472

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