Problem 52689. Easy Sequences 18: Set Bits of Triple Summations

Created by Ramon Villamangca

Solve Later

The function S(n) is defined by the following triple summations:
                            
The double brackets mean that the output of the triple summations is being rounded-off to the nearest integer. Write the function 'bitS(n)', which is the number of bits set in the binary representation of S(n).

Solve

Solution Stats

20 Solutions
8 Solvers

Last Solution submitted on Dec 22, 2025

Last 200 Solutions

Problem Comments

5 Comments

5 Comments

Show 2 older comments

William on 12 Sep 2021

Hmmm. It's a very clever problem, but I am getting different answers!

ChrisR on 12 Sep 2021

I am as well. For example, for n = 100, I get 4 (out of 7) bits set.

William on 12 Sep 2021

Chris -- Yes, exactly.

Ramon Villamangca on 12 Sep 2021

Let me check. Thanks.

Ramon Villamangca on 12 Sep 2021

Hi Chris/William,

Should be 'triple summations', sorry for that.

Solution Comments

Show comments

Problem Recent Solvers8

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 52689. Easy Sequences 18: Set Bits of Triple Summations

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers8

Suggested Problems

More from this Author116

Problem Tags

Community Treasure Hunt

Problem 52689. Easy Sequences 18: Set Bits of Triple Summations

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers8

Suggested Problems

More from this Author116

Problem Tags

Community Treasure Hunt

Players