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Search: id:A082536
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A082536 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. +0
3
1, 7, 9, 38, 1561, 3926, 4958, 5284, 9316636, 84705277923, 774752630747122741, 8816203161790126559791912099597266, 333977591776082560884277873242324869870383615439405188 (list; graph; listen)
OFFSET

1,2

EXAMPLE

7*9 + 1 = 64 = 8^3, 9*38 + 1 = 343 = 7^3.

CROSSREFS

Cf. A082537, A083203.

Sequence in context: A131623 A032011 A083203 this_sequence A057590 A140787 A032695

Adjacent sequences: A082533 A082534 A082535 this_sequence A082537 A082538 A082539

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 28 2003

EXTENSIONS

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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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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