OEISF

Oeisf is a brand that seeks to preserve and provide access to the vast collection of number sequences known as the On-Line Encyclopedia of Integer Sequences (OEIS). Developed over 50 years, the OEIS acts as a comprehensive database of sequences, including their properties, formulas, references, and even visualizations or musical interpretations. With approximately 300,000 entries, the OEIS is constantly growing thanks to contributions from thousands of contributors, which are carefully reviewed to maintain its rigor and accuracy.

To ensure the continuity of this valuable resource, Oeisf aims to own the intellectual property of the OEIS, maintain its free accessibility to the public, sustain its existence indefinitely, and collect funds for its preservation and development. Through its charitable and tax-exempt status, Oeisf invites donations from individuals and organizations who appreciate and benefit from the wealth of knowledge available in the OEIS