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Search: id:A006899
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| A006899 |
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Numbers of the form 2^i or 3^j.
(Formerly M0588)
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+0
12
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| 1, 2, 3, 4, 8, 9, 16, 27, 32, 64, 81, 128, 243, 256, 512, 729, 1024, 2048, 2187, 4096, 6561, 8192, 16384, 19683, 32768, 59049, 65536, 131072, 177147, 262144, 524288, 531441, 1048576, 1594323, 2097152, 4194304, 4782969, 8388608, 14348907, 16777216, 33554432
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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a(n) = A085239(n)^A085238(n). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 22 2003
Complement of A033845 with respect to A003586; A086411(a(n))=A086410(a(n)). [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 25 2008]
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REFERENCES
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G. H. Hardy, Ramanujan, Cambridge Univ. Press, 1940, p. 78.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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T. D. Noe, Table of n, a(n) for n=1..500
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
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MAPLE
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A:={seq(2^n, n=0..63)}: B:={seq(3^n, n=0..40)}: C:=sort(convert(A union B, list)): seq(C[j], j=1..39); (Emeric Deutsch (deutsch(AT)duke.poly.edu), Aug 03 2005)
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MATHEMATICA
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Union[2^Range[0, 100], 3^Range[0, 100]] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Apr 08 2006
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CROSSREFS
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Union of A000079 and A000244. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 25 2008]
Sequence in context: A068317 A074311 A076382 this_sequence A078830 A026489 A126312
Adjacent sequences: A006896 A006897 A006898 this_sequence A006900 A006901 A006902
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KEYWORD
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nonn,easy,nice
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AUTHOR
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Simon Plouffe, N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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More terms from Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 22 2003
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