Program to Print Series 6, 9, 14, 21, 30, 41, 54 ... N

Python Program to Print Series 6, 9, 14, 21, 30, 41, 54 … N

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In the previous article, we have discussed Python Program to Print Series 1, -2, 6, -15, 31 … N
Given a number N and the task is to print the series (6, 9, 14, 21, 30, 41, 54 … N) till the given number N in Python.

Examples:

Example1:

Input:

Given Number (Limit) = 7

Output:

The above series till the given number{ 7 } is :
6 9 14 21 30 41 54

Example2:

Input:

Given Number (Limit) = 10

Output:

The above series till the given number{ 10 } is :
6 9 14 21 30 41 54 69 86 105

Program to Print Series 6, 9, 14, 21, 30, 41, 54 … N in Python

Below are the ways to print the series (6, 9, 14, 21, 30, 41, 54 … 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 k and initialize its value to 3.
  • Take another variable say valu and initialize its value to 6.
  • Loop until the above-declared variable itr value is less than or equal to the given number using the while loop.
  • Inside the loop, print the value of the above variable valu separated by spaces.
  • Add k value to the above valu and store it in the same variable valu.
  • Increment the above k value by 2.
  • 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 = 7
# Take a variable to say itr and initialize its value to 1.
itr = 1
# Take another variable say k and initialize its value to 3.
k = 3
# Take another variable say valu and initialize its value to 6.
valu = 6
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=" ")
    # Add k value to the above valu and store it in the same variable valu.
    valu += k
    # Increment the above k value by 2.
    k += 2
    # Increment the above itr value by 1.
    itr += 1

Output:

The above series till the given number{ 7 } is :
6 9 14 21 30 41 54

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.
  • Let us Take another variable say k and initialize its value to 3.
  • Take another variable say valu and initialize its value to 6.
  • Loop until the above-declared variable itr value is less than or equal to the given number using the while loop.
  • Inside the loop, print the value of the above variable valu separated by spaces.
  • Add k value to the above valu and store it in the same variable valu.
  • Increment the above k value by 2.
  • 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 k and initialize its value to 3.
k = 3
# Take another variable say valu and initialize its value to 6.
valu = 6
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=" ")
    # Add k value to the above valu and store it in the same variable valu.
    valu += k
    # Increment the above k value by 2.
    k += 2
    # Increment the above itr value by 1.
    itr += 1

Output:

Enter some Random Number = 10
The above series till the given number{ 10 } is :
6 9 14 21 30 41 54 69 86 105

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