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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A186928 Greater of two consecutive 3-smooth numbers having no common divisors. 3
2, 3, 4, 9, 32, 256, 2187, 531441, 134217728, 70368744177664, 36893488147419103232, 19383245667680019896796723, 713623846352979940529142984724747568191373312, 13803492693581127574869511724554050904902217944340773110325048447598592 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(n) = A003586(A186771(n) + 1); A186927(n) = A003586(A186771(n));

also a subsequence of A006899: all terms are either powers of 2 or of 3.

LINKS

Table of n, a(n) for n=1..14.

CROSSREFS

Cf. A186711.

Sequence in context: A007704 A059972 A086432 * A076018 A076017 A135112

Adjacent sequences:  A186925 A186926 A186927 * A186929 A186930 A186931

KEYWORD

nonn

AUTHOR

Charles R Greathouse IV and Reinhard Zumkeller, Mar 01 2011

STATUS

approved

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 May 22 17:14 EDT 2013. Contains 225559 sequences.