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http://hdl.handle.net/10553/51596
Title: | Proof without words: a Pascal-like triangle with Pell number row sums | Authors: | Plaza, Ángel | UNESCO Clasification: | 120504 Teoría elemental de los números | Issue Date: | 2017 | Journal: | College Mathematics Journal | Abstract: | In a Pascal-like triangle, where each entry is the sum of the three numbers above them, we visually prove that the row sums are the Pell numbers, given by a two-step recursion. | URI: | http://hdl.handle.net/10553/51596 | ISSN: | 0746-8342 | DOI: | 10.4169/college.math.j.48.5.346 | Source: | College Mathematics Journal [ISSN 0746-8342], v. 48 (5), p. 346 |
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