login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A018899 Smallest positive integer not representable as the sum of n numbers of form 2^a*3^b. 0
1, 5, 23, 431, 18431, 3448733, 1441896119 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

REFERENCES

Valérie Berthé and Laurent Imbert, Diophantine Approximation, Ostrowski Numeration and the Double-Base Number System, Discrete Mathematics and Theoretical Computer Science, vol. 11:1, 2009, pp. 153-172

LINKS

Valérie Berthé's publications

Mike Oakes, Posting to primenumbers list, Aug 30 2003

CROSSREFS

Sequence in context: A072104 A086797 A023275 * A080990 A172036 A003487

Adjacent sequences:  A018896 A018897 A018898 * A018900 A018901 A018902

KEYWORD

nonn

AUTHOR

Vassil Dimitrov (vassil(AT)Engn.Uwindsor.Ca), Aug 15 1996

EXTENSIONS

1441896119 Mike Oakes (mikeoakes2(AT)aol.com), Sep 07 2003

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 17 10:05 EST 2012. Contains 206009 sequences.