The nth triangular number is the sum of the first n positive integers. The sequence of triangular numbers starts 1, 3, 6, 10, 15, and 21. These numbers are involved in Cody Problems 5, 291, 44289, 44334, 44732, 55680, 55695, 55705, 55710, and 55715, for example.
Write a function to return the sum of the non-triangular numbers between the nth and (n+1)st triangular numbers. For example, if n = 3, then the function should return 7+8+9 = 24. Beware the banned functions.
Solution Stats
Solution Comments
Show comments
Loading...
Problem Recent Solvers15
Suggested Problems
-
Determine if a Given Number is a Triangle Number
400 Solvers
-
Get the length of a given vector
13523 Solvers
-
Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
265 Solvers
-
130 Solvers
-
How long do each of the stages of the rocket take to burn?
498 Solvers
More from this Author327
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
