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Fibonacci numbers

[fee-boh-nah-chee] /ˌfi boʊˈnɑ tʃi/
plural noun, Mathematics.
the unending sequence 1, 1, 2, 3, 5, 8, 13, 21, 34, … where each term is defined as the sum of its two predecessors.
Also called Fibonacci sequence.
Origin of Fibonacci numbers
1890-95; after Leonardo Fibonacci, 13th-century Italian mathematician Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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