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A043276
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a(n)=maximal run length in base 2 representation of n.
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9
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1, 1, 2, 2, 1, 2, 3, 3, 2, 1, 2, 2, 2, 3, 4, 4, 3, 2, 2, 2, 1, 2, 3, 3, 2, 2, 2, 3, 3, 4, 5, 5, 4, 3, 3, 2, 2, 2, 3, 3, 2, 1, 2, 2, 2, 3, 4, 4, 3, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 5, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 3, 4, 4, 3, 2, 2, 2, 1, 2, 3, 3, 2, 2, 2, 3, 3, 4, 5, 5, 4, 3, 3, 2, 2, 2, 3, 3, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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COMMENTS
| First occurrence of k is when n=2^k-1 and there is no last occurrence. [From Robert G. Wilson v (rgwv(AT)rgwv.com), Dec 14 2008]
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MATHEMATICA
| f[n_] := Max @@ Length /@ Split@IntegerDigits[n, 2]; Array[f, 105] [From Robert G. Wilson v (rgwv(AT)rgwv.com), Dec 14 2008]
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CROSSREFS
| Sequence in context: A134658 A106580 A165915 * A064742 A167489 A106638
Adjacent sequences: A043273 A043274 A043275 * A043277 A043278 A043279
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KEYWORD
| nonn,base
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AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu)
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EXTENSIONS
| More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Dec 14 2008
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