Website: oeis.org
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The On-Line Encyclopedia of Integer Sequences (OEIS) is a widely respected and trusted resource in the field of mathematics. It is a comprehensive database of integer sequences, providing valuable information for mathematicians, researchers, and enthusiasts. The OEIS is maintained by the OEIS Foundation, a non-profit organization dedicated to supporting and expanding the database. The website's long history, extensive content, and the involvement of the OEIS Foundation contribute to its credibility and reliability. It has been a valuable tool for mathematicians and researchers for over two decades, and its continued maintenance and updates demonstrate its commitment to accuracy and usefulness. The OEIS is used for a variety of purposes, including identifying and studying patterns in integer sequences, verifying conjectures, and finding references to published mathematical work. Its extensive collection of sequences, along with associated data and references, makes it a valuable resource for the mathematical community. The website's interface is straightforward and user-friendly, allowing users to search for specific sequences, browse by keywords, and contribute new sequences or information. The inclusion of multiple languages for the interface further enhances its accessibility to a global audience. Overall, the OEIS is a reputable and valuable resource in the field of mathematics. Its long history, non-profit foundation support, and extensive usage by mathematicians and researchers contribute to its status as a safe and reliable website for accessing information about integer sequences."