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Search: id:A130147
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| A130147 |
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a(0)=1. a(n+1) = a(floor(n/a(n))) + 1. |
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+0
3
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| 1, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 4, 5, 4, 4, 4, 4, 4, 5, 4, 5, 5, 5, 5, 5, 4, 5, 4, 5, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Records occur at 0,1,3,10,41,206,1237,8660,69281,623530,6235301, which appears to be A002627. See A132424 for a related sequence. - John W. Layman (layman(AT)math.vt.edu), Aug 20 2007
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MAPLE
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a[0]:=1: for n from 0 to 110 do a[n+1]:=1+a[floor(n/a[n])] end do: seq(a[n], n=0..110); - Emeric Deutsch (deutsch(AT)duke.poly.edu), Aug 19 2007
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CROSSREFS
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Cf. A002627, A132424.
Sequence in context: A091195 A072375 A131981 this_sequence A096143 A025792 A119447
Adjacent sequences: A130144 A130145 A130146 this_sequence A130148 A130149 A130150
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KEYWORD
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easy,nonn
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AUTHOR
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Leroy Quet (qq-quet(AT)mindspring.com), Aug 02 2007
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EXTENSIONS
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More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu) and John W. Layman (layman(AT)math.vt.edu), Aug 19 2007
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