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freeCodeCamp/curriculum/challenges/english/10-coding-interview-prep/project-euler/problem-341-golombs-self-describing-sequence.md
Oliver Eyton-Williams ee1e8abd87 feat(curriculum): restore seed + solution to Chinese (#40683)
* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
2021-01-12 19:31:00 -07:00

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Markdown

---
id: 5900f4c11000cf542c50ffd3
title: 'Problem 341: Golomb''s self-describing sequence'
challengeType: 5
forumTopicId: 302000
dashedName: problem-341-golombs-self-describing-sequence
---
# --description--
The Golomb's self-describing sequence {G(n)} is the only nondecreasing sequence of natural numbers such that n appears exactly G(n) times in the sequence. The values of G(n) for the first few n are
n123456789101112131415…G(n)122334445556666…
You are given that G(103) = 86, G(106) = 6137. You are also given that ΣG(n3) = 153506976 for 1 ≤ n &lt; 103.
Find ΣG(n3) for 1 ≤ n &lt; 106.
# --hints--
`euler341()` should return 56098610614277016.
```js
assert.strictEqual(euler341(), 56098610614277016);
```
# --seed--
## --seed-contents--
```js
function euler341() {
return true;
}
euler341();
```
# --solutions--
```js
// solution required
```