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Search: id:A082536
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| A082536 |
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a(1) = 1; for n > 1, a(n) = smallest number greater than a(n-1) such that a(n-1)*a(n)+1 is a cube. |
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+0
3
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| 1, 7, 9, 38, 1561, 3926, 4958, 5284, 9316636, 84705277923, 774752630747122741, 8816203161790126559791912099597266, 333977591776082560884277873242324869870383615439405188
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OFFSET
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1,2
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EXAMPLE
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7*9 + 1 = 64 = 8^3, 9*38 + 1 = 343 = 7^3.
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CROSSREFS
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Cf. A082537, A083203.
Sequence in context: A131623 A032011 A083203 this_sequence A057590 A140787 A032695
Adjacent sequences: A082533 A082534 A082535 this_sequence A082537 A082538 A082539
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KEYWORD
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nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 28 2003
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EXTENSIONS
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Corrected and extended by Vladeta Jovovic (vladeta(AT)eunet.rs), May 01 2003
More terms from Michel ten Voorde (seqfan(AT)tenvoorde.org) Jun 23 2003
More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 29 2003
a(11)-a(13) from David Wasserman (wasserma(AT)spawar.navy.mil), Mar 26 2004
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