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---
id: 5900f44e1000cf542c50ff60
challengeType: 5
title: 'Problem 225: Tribonacci non-divisors'
videoUrl: ''
localeTitle: 问题225Tribonacci非除数
---
## Description
<section id="description">序列1,1,1,3,5,9,17,31,57,105,193,355,653,1201 ......由T1 = T2 = T3 = 1和Tn = Tn-1 + Tn定义-2 + Tn-3。 <p>可以证明27不会划分该序列的任何项。实际上27是具有该属性的第一个奇数。 </p><p>找到不分割上述序列的任何项的第124个奇数。 </p></section>
## Instructions
<section id="instructions">
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: <code>euler225()</code>应该返回2009年。
testString: 'assert.strictEqual(euler225(), 2009, "<code>euler225()</code> should return 2009.");'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
function euler225() {
// Good luck!
return true;
}
euler225();
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>