Metadata-Version: 2.1
Name: oeis
Version: 2020.1.20
Summary: Implementation of a few integer sequences from the OEIS.
Home-page: https://github.com/JulienPalard/oeis
Author: Julien Palard
Author-email: julien@palard.fr
License: MIT License
Description: # OEIS
        
        ## Project
        
        This project is the implementation of a few sequences from the [OEIS](https://oeis.org).
        
        
        ## Usage
        
        To install it, run: `pip install oeis`.
        
        
        ### CLI usage
        
        `oeis` can be used from command line as:
        
        ```bash
        $ oeis --help
        usage: oeis [-h] [--list] [--start START] [--stop STOP] [--plot] [--random] [--file] [--dark-plot] [sequence]
        
        Print a sweet sequence
        
        positional arguments:
          sequence       Define the sequence to run (e.g.: A181391)
        
        optional arguments:
          -h, --help     show this help message and exit
          --list         List implemented series
          --start START  Define the starting point of the sequence.
          --stop STOP    End point of the sequence (excluded).
          --plot         Print a sweet sweet sweet graph
          --random       Pick a random sequence
          --file         Generates a png of the sequence's plot
          --dark-plot    Print a dark dark dark graph
        ```
        
        Need a specific sequence?
        
        ```bash
        $ oeis A000108
        # A000108
        
        Catalan numbers: C(n) = binomial(2n,n)/(n+1) = (2n)!/(n!(n+1)!).
            Also called Segner numbers.
        
        [1, 1, 2, 5, 14, 42, 132, 429, 1430, 4862, 16796, 58786, 208012, 742900, 2674440, 9694845, 35357670, 129644790, 477638700, 1767263190]
        ```
        
        Lazy? Pick one by random:
        
        ```
        $ oeis --random
        # A000045
        
        Fibonacci numbers: F(n) = F(n-1) + F(n-2) with F(0) = 0 and F(1) = 1.
        
        [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181]
        ```
        
        Want to see something cool?
        
        ```
        $ oeis A133058 --plot --stop 1200
        ```
        
        ![A133058 plotted](https://mdk.fr/A133058.png)
        
        
        ### Library usage
        
        The `oeis` module expose sequences as Python Sequences:
        
        ```python3
        >>> from oeis import A000045
        >>> print(*A000045[:10], sep=", ")
        1, 1, 2, 3, 5, 8, 13, 21, 34, 55
        >>> A000045[0] == A000045[1]
        True
        >>> A000045[100:101]
        [573147844013817084101]
        ```
        
        
        ## Contributing
        
        We are using the [black]((https://github.com/psf/black) coding style,
        and `tox` to run some tests, so after creating a `venv`, installing
        dev requirements via `pip install requirements-dev.txt`, run `tox` or
        `tox -p auto` (parallel), it should look like this:
        
        ```
        $ tox -p auto
        ✔ OK mypy in 11.807 seconds
        ✔ OK flake8 in 12.024 seconds
        ✔ OK black in 12.302 seconds
        ✔ OK py36 in 13.776 seconds
        ✔ OK py37 in 15.344 seconds
        ✔ OK py38 in 21.041 seconds
        ______________________________________ summary ________________________________________
          py36: commands succeeded
          py37: commands succeeded
          py38: commands succeeded
          flake8: commands succeeded
          mypy: commands succeeded
          black: commands succeeded
          congratulations :)
        ```
        
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: MIT License
Classifier: Natural Language :: English
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Requires-Python: >=3.6
Description-Content-Type: text/markdown; charset=UTF-8
