Integer sequence Guide, Meaning , Facts, Information and Description

In mathematics, an integer sequence is a sequence (i.e., an ordered list) of integers.

An integer sequence may be specified explicitly by giving a formula for its n-th term, or implicitly by giving a relationship between its terms. For example, the sequence 0, 1, 1, 2, 3, 5, 8, 13, ... (the Fibonacci sequence) is formed by starting with 0 and 1 and then adding any two consecutive terms to obtain the next one: an implicit description. The sequence 0, 3, 8, 15, ... is formed according to the formula n² − 1 for the n-th term: an explicit definition.

Integer sequences which have received their own name include:

• Catalan numbers
• Euler numbers
• Fibonacci numbers
• Figurate numbers
• Lucas numbers

See also

• On-Line Encyclopedia of Integer Sequences

External links

• Journal of Integer Sequences. Articles are freely available online.

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