---
id: 5900f4861000cf542c50ff99
challengeType: 5
title: 'Problem 282: The Ackermann function'
---
## Description
For non-negative integers m, n, the Ackermann function A(m, n) is defined as follows:
For example A(1, 0) = 2, A(2, 2) = 7 and A(3, 4) = 125.
Find A(n, n) and give your answer mod 148.
## Instructions
## Tests
```yml
tests:
- text: euler282() should return 1098988351.
testString: assert.strictEqual(euler282(), 1098988351, 'euler282() should return 1098988351.');
```
## Challenge Seed
```js
function euler282() {
// Good luck!
return true;
}
euler282();
```