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A061716
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Binary order of n-th prime.
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1
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1, 2, 3, 3, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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COMMENTS
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Apart from the first terms, the same as A035100. [From R. J. Mathar, Oct 02 2008]
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,2000
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FORMULA
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a(n)=Ceiling[Log[2, Prime[n]]]=A029837(A000040(n)).
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PROG
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(PARI) { default(realprecision, 100); n=0; t=1/log(2); forprime (p=2, prime(2000), write("b061716.txt", n++, " ", ceil(t*log(p))) ) } [From Harry J. Smith, Jul 26 2009]
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CROSSREFS
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Cf. A029837, A000040, A003070, A045716, A045716, A036378.
Sequence in context: A056792 A130500 A072073 * A126236 A198194 A073047
Adjacent sequences: A061713 A061714 A061715 * A061717 A061718 A061719
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Jun 20 2001
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EXTENSIONS
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OFFSET changed from 0,2 to 1,2 by Harry J. Smith, Jul 26 2009
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STATUS
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approved
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