https://github.com/semibran/delannoy

:chart_with_upwards_trend: Calculate Delannoy numbers
https://github.com/semibran/delannoy

combinatorics delannoy math numbers

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:chart_with_upwards_trend: Calculate Delannoy numbers

• Host: GitHub
• URL: https://github.com/semibran/delannoy
• Owner: semibran
• License: mit
• Created: 2017-06-27T17:39:14.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2017-06-27T19:59:45.000Z (over 7 years ago)
• Last Synced: 2024-10-26T12:32:09.174Z (3 months ago)
• Topics: combinatorics, delannoy, math, numbers
• Language: JavaScript
• Homepage:
• Size: 4.88 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: license

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README

        
# delannoy

![paths from (0, 0) to (m, n)](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Delannoy3x3.svg/500px-Delannoy3x3.svg.png)

A small function for calculating [Delannoy numbers](https://en.wikipedia.org/wiki/Delannoy_number).

## usage

[![NPM](https://nodei.co/npm/delannoy.png?mini)](https://www.npmjs.com/package/delannoy)

```js

> const delannoy = require('delannoy')

> delannoy(3, 3)

63

```

## see also

- [`kchapelier/von-neumann`](https://github.com/kchapelier/von-neumann) - find the number of cells in an `m`-dimensional von Neumann neighborhood of range `n`

- [`semibran/motzkin`](https://github.com/semibran/motzkin) - calculate Motzkin numbers

- [`semibran/narayana`](https://github.com/semibran/narayana) - calculate Narayana numbers

## license

[MIT](https://opensource.org/licenses/MIT) © [Brandon Semilla](https://git.io/semibran)