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Search: id:A061021
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| A061021 |
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a(n) = a(n-1)*a(n-2)-a(n-3). |
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+0
2
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| 3, 3, 3, 6, 15, 87, 1299, 112998, 146784315, 16586334025071, 2434613678231239448367, 40381315689150066251526220641224742, 98312903521778500654864668915856114278134197773017871243
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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Any three consecutive terms are a solution to the Diophantine equation x^2 + y^2 + z^2 = xyz.
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REFERENCES
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E.T.H. Wang, Problem Proposal 701, College Mathematics Journal 32 (2001), p. 211.
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CROSSREFS
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Sequence in context: A113920 A081848 A079988 this_sequence A126608 A088195 A131757
Adjacent sequences: A061018 A061019 A061020 this_sequence A061022 A061023 A061024
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KEYWORD
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easy,nonn
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AUTHOR
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Stephen G. Penrice (spenrice(AT)ets.org), May 23 2001
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EXTENSIONS
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More terms from Erich Friedman (efriedma(AT)stetson.edu), Jun 03 2001
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