Problem 53760. Easy Sequences 62: Sum of Omega-3 Function
For an integer n, the prime big omega function,
, is defined as the total number of prime factors of n. If
, since
, therefore
. The omega-3 function (
), is defined as raising 3 to the power of the prime big omega of n, i.e.
. In the example above,
.
Given an integer n, write a function that returns the sum of omega-3's of all integers from 1 to n. For example for
the function output should be
, since:
Solution Stats
Problem Comments
-
2 Comments
William
on 7 Jan 2022
Ramon, you might want to make a small correction to the last formula in the description, though it makes no difference to the problem. The "product" symbol was probably meant to be a "summation" symbol.
Ramon Villamangca
on 8 Jan 2022
Thanks, William.
Solution Comments
Show commentsProblem Recent Solvers3
Suggested Problems
-
Make the vector [1 2 3 4 5 6 7 8 9 10]
51968 Solvers
-
Self-similarity 3 - Every other pair of terms
52 Solvers
-
I'm going to enjoy watching you calculate, Mr Anderson
46 Solvers
-
1962 Solvers
-
Splitting Triangle - Problem the third
27 Solvers
More from this Author116
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!