Problem 57815. List numbers such that every sum of consecutive positive integers ending in those numbers is composite
The sequence in question in this problem involves numbers m such that all sums of consecutive positive integers ending with m are composite. The number 12 is not in the sequence because 11+12 is prime. The number 13 is not in the sequence because 13 is prime. However, 14 is in the sequence because all of the sums 14, 14+13, 14+13+12, etc. through 14+13+12+…+1 are composite.
Write a function that returns the nth number in this sequence.
Solution Stats
Problem Comments
Solution Comments
Show commentsProblem Recent Solvers5
Suggested Problems
-
129 Solvers
-
567 Solvers
-
Replace pattern 0 1 0 and 1 0 1
134 Solvers
-
283 Solvers
-
compress sequence into intervals
86 Solvers
More from this Author249
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!