Back موسوعة المتتاليات الصحيحة على الإنترنت Arabic Tam ədəd ardıcıllıqlarının ensiklopediyası Azerbaijani ওইআইএস Bengali/Bangla On-Line Encyclopedia of Integer Sequences Catalan ئینسایکڵۆپیدیای سەرھێڵی پاشیەکییە تەواوەکان CKB On-Line Encyclopedia of Integer Sequences Czech OEIS Danish On-Line Encyclopedia of Integer Sequences German On-Line Encyclopedia of Integer Sequences Greek Retatingebla Enciklopedio de Entjerosinsekvoj Esperanto
 | |
| Founded | 1964 |
|---|---|
| Predecessor(s) | Handbook of Integer Sequences, Encyclopedia of Integer Sequences |
| Created by | Neil Sloane |
| Chairman | Neil Sloane |
| President | Russ Cox |
| URL | oeis |
| Commercial | No[1] |
| Registration | Optional[2] |
| Launched | 1996 |
Content license | Creative Commons CC BY-SA 4.0[3] |
The On-Line Encyclopedia of Integer Sequences (OEIS) is an online database of integer sequences. It was created and maintained by Neil Sloane while researching at AT&T Labs. He transferred the intellectual property and hosting of the OEIS to the OEIS Foundation in 2009,[4] and is its chairman.
OEIS records information on integer sequences of interest to both professional and amateur mathematicians, and is widely cited. As of February 2024[ref], it contains over 370,000 sequences,[5] and is growing by approximately 30 entries per day.[6]
Each entry contains the leading terms of the sequence, keywords, mathematical motivations, literature links, and more, including the option to generate a graph or play a musical representation of the sequence. The database is searchable by keyword, by subsequence, or by any of 16 fields. There is also an advanced search function called SuperSeeker which runs a large number of different algorithms to identify sequences related to the input.[7]
- ^ "Goals of The OEIS Foundation Inc". The OEIS Foundation Inc. Archived from the original on 2013-12-06. Retrieved 2017-11-06.
- ^ Registration is required for editing entries or submitting new entries to the database
- ^ "The OEIS End-User License Agreement - OeisWiki". oeis.org. Retrieved 2023-02-26.
- ^ "Transfer of IP in OEIS to the OEIS Foundation Inc". Archived from the original on 2013-12-06. Retrieved 2010-06-01.
- ^ "The On-Line Encyclopedia of Integer Sequences (OEIS)".
- ^ "FAQ for the On-Line Encyclopedia of Integer Sequences". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 22 June 2024.
- ^ Sloane, Neil (2024). "The Email Servers and Superseeker".
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