OEIS compared with Wolfram Alpha, Mathematica and SageMath| OEIS | Wolfram Alpha | Mathematica | 세이지매스 |
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| Core function: OEIS is a curated database of integer sequences. Its home page reported 400438 sequences on 18 October 2026, searchable by terms, words or A-number. | Core function: Wolfram Alpha is a computation service, not a catalogue. From a list of terms it computes a possible formula and continues the sequence, and it also accepts an OEIS number as input. | Core function: Mathematica is a technical computing environment built on the Wolfram Language. Looking up OEIS entries goes through the OEISLookup function from the Wolfram Function Repository, which needs Wolfram Language 13.0 or later. | Core function: SageMath is a Python-based mathematics system. Its OEIS interface searches by list of integers, by text description or by entry text, and fetches a sequence by A-number. |
| Outputs and data access: Each entry offers views named list, graph, refs, listen (MIDI), table, text, internal format and history. Two gzipped files, sequences and names, are refreshed daily for bulk download. | Outputs and data access: Wolfram Alpha can return the generating function of a sequence given by OEIS number, for example the generating function of A000108. | Outputs and data access: OEISLookup queries the OEIS JSON API and returns the matching sequences, so results depend on the online database. | Outputs and data access: A fetched sequence exposes terms, name, formulas, comments, examples, cross-references and programs. Some sequences convert into Sage objects such as continued fractions or real numbers from decimal expansions. |
| 라이선스 및 비용: Content is provided under the OEIS End-User License Agreement. The database is run by the OEIS Foundation Inc., a nonprofit set up in 2009. | | 라이선스 및 비용: Mathematica is proprietary software with licensing and trial options on a separate pricing page. | 라이선스 및 비용: SageMath is free and open source under the GPL. |
| Platform and offline use: OEIS runs in any browser. For automated or offline work the daily files can be mirrored locally. | | Platform and offline use: Mathematica is available on Windows, macOS, Linux and Cloud. The OEIS lookup requires an internet connection. | Platform and offline use: Binaries are listed for Linux and macOS through conda-forge, and Windows is supported through the Windows Subsystem for Linux. Most OEIS calls need internet, and a local partial copy called SloaneEncyclopedia exists for heavy searching. |