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A087665
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Consider recurrence b(0) = n/4, b(n) = b(n-1)*floor(b(n-1)); sequence gives first integer reached, or -1 if no integer is ever reached.
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1
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OFFSET
| 8,1
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COMMENTS
| It is conjectured that an integer is always reached if the initial value is >= 2.
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LINKS
| J. C. Lagarias and N. J. A. Sloane, Approximate squaring (pdf, ps), Experimental Math., 13 (2004), 113-128.
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CROSSREFS
| Cf. A087664 (steps to reach an integer), A087667, A087668.
Sequence in context: A113918 A094048 A179073 * A093481 A132629 A174708
Adjacent sequences: A087662 A087663 A087664 * A087666 A087667 A087668
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Sep 27 2003
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EXTENSIONS
| The next term is too large to include.
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