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A087336 a(1) = 7, then smallest number such that every partial product + 1 is a cube. 1
7, 9, 65, 2294, 6344286, 59597778583982, 3551895212145224329469808362, 12615959598060168145040535737856890513190349434065506322 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

7+1 = 8, 7*9 +1 = 64= 8^3, 7*9*65+1 = 4096 = 16^3.

CROSSREFS

Cf. A087337.

Sequence in context: A299913 A226197 A263836 * A178427 A285011 A317401

Adjacent sequences:  A087333 A087334 A087335 * A087337 A087338 A087339

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Sep 06 2003

EXTENSIONS

More terms from Don Reble, Sep 17 2003

STATUS

approved

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Last modified August 5 19:30 EDT 2020. Contains 336213 sequences. (Running on oeis4.)