Problem 44338. Recaman Sequence - I
Recaman Sequence (A005132 - - OEIS Link) is defined as follow;
seq(0) = 0; for n > 0, seq(n) = seq(n-1) - n if positive and not already in the sequence, otherwise seq(n) = seq(n-1) + n.
seq = 0, 1, 3, 6, 2, 7, 13, 20, 12, 21, 11, 22, 10, 23, 9 ... index = 1, 2, 3 ,...
To avoid zero index, start indexing from 1. return the first n elements in Recaman Sequence
Related Challenges :
- Recaman Sequence - I
- Recaman Sequence - II
- Recaman Sequence - III
Solution Stats
Problem Comments
-
8 Comments
Hello, Mehmet OZC. I think the problem statement is still subject to misinterpretation. At the moment it looks like "index" means "n", which is inconsistent with the formula. To avoid this misunderstanding, you could insert one extra row to show explicitly the values of "n". ... Thus you would have: seq = 0, 1, 3, 6, ... . Then, n = 0, 1, 2, 3, ... . And finally, Index = 1, 2, 3, 4, ... . ____ Alternatively, you could omit any mention of indexing and just clarify with an _example_, such as: "The first four elements are [0, 1, 3, 6]."
David, you have already made a good explanation for a possible misinterpretation. I appreciate it. Thanks for your contribution. When I said indexing I meant something like linear indexing (https://www.mathworks.com/company/newsletters/articles/matrix-indexing-in-matlab.html)
good question :-)
Solution Comments
Show commentsProblem Recent Solvers310
Suggested Problems
-
Renaming a field in a structure array
1549 Solvers
-
How to find the position of an element in a vector without using the find function
2749 Solvers
-
First non-zero element in each column
871 Solvers
-
890 Solvers
-
Flag largest magnitude swings as they occur
681 Solvers
More from this Author92
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!