---
id: 5900f3e21000cf542c50fef4
challengeType: 5
isHidden: false
title: 'Problem 117: Red, green, and blue tiles'
forumTopicId: 301743
---
## Description
Using a combination of black square tiles and oblong tiles chosen from: red tiles measuring two units, green tiles measuring three units, and blue tiles measuring four units, it is possible to tile a row measuring five units in length in exactly fifteen different ways.
How many ways can a row measuring fifty units in length be tiled?
NOTE: This is related to Problem 116.
## Instructions
## Tests
```yml
tests:
- text: euler117() should return 100808458960497.
testString: assert.strictEqual(euler117(), 100808458960497);
```
## Challenge Seed
```js
function euler117() {
// Good luck!
return true;
}
euler117();
```