Back موسوعة المتتاليات الصحيحة على الإنترنت Arabic Tam ədəd ardıcıllıqlarının ensiklopediyası Azerbaijani 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 On-Line Encyclopedia of Integer Sequences English Retatingebla Enciklopedio de Entjerosinsekvoj Esperanto
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The On-Line Encyclopedia of Integer Sequences (OEIS), also known as Sloane's, is a large searchable database. It is on the Web, and it contains number sequences, like the Fibonacci numbers or the powers of two.
It contains over 270,000 sequences. This makes it the largest database of its kind. Each entry contains the leading terms of the sequence, keywords, mathematical motivations, literature links. It also includes the option to generate a graph or play a musical representation of the sequence. The database can be searched by keyword and by subsequence. For instance, it is possible to search for all sequences with both 15 and 118.
