oeis-code

Mini OEIS in Python with PARI/GP support.

Installation

pip install oeis-code

PARI/GP Support (Optional)

To use the PARI/GP backend, you need cypari2. Note that this requires PARI/GP development headers installed on your system.

Debian/Ubuntu:

sudo apt install build-essential python3-dev libgmp-dev libpari-dev pari-gp
pip install cypari2

Fedora:

sudo dnf install pari-devel
pip install cypari2

macOS (using Homebrew):

brew install pari
pip install cypari2

Usage

from oeis_code import get

# Get the 10th Fibonacci number
get("A000045", 10)  # Returns 55

Contributing

• Create a new file in src/oeis_code/sequences/
• Use the @register("Axxxxxx") decorator
• Implement the sequence(n) function
• See CONTRIBUTING.md for full guidance

Releases

See CHANGELOG.md for a full list of changes.