1.1 KiB
1.1 KiB
id | challengeType | title | forumTopicId |
---|---|---|---|
5900f4c41000cf542c50ffd6 | 5 | Problem 343: Fractional Sequences | 302002 |
Description
1/20 → 2/19 → 3/18 = 1/6 → 2/5 → 3/4 → 4/3 → 5/2 → 6/1 = 6
So f(20) = 6.
Also f(1) = 1, f(2) = 2, f(3) = 1 and Σf(k3) = 118937 for 1 ≤ k ≤ 100.
Find Σf(k3) for 1 ≤ k ≤ 2×106.
Instructions
Tests
tests:
- text: <code>euler343()</code> should return 269533451410884200.
testString: assert.strictEqual(euler343(), 269533451410884200);
Challenge Seed
function euler343() {
// Good luck!
return true;
}
euler343();
Solution
// solution required