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

 

Logo

Invitation: celebrating 50 years of OEIS, 250000 sequences, and Sloane's 75th, there will be a conference at DIMACS, Rutgers, Oct 9-10 2014.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A158315 A158280(n)/7. 3
1, 3, 3, 3, 6, 3, 3, 9, 3, 3, 9, 3, 6, 10, 3, 3, 9, 9, 3, 9, 3, 3, 18, 3, 6, 9, 3, 9, 9, 3, 3, 18, 9, 3, 9, 3, 3, 18, 9, 3, 15, 3, 9, 9, 3, 9, 9, 9, 3, 18, 3, 3, 27, 3, 3, 9, 3, 9, 18, 9, 6, 9, 10, 3, 9, 3, 9, 30, 3, 3, 9, 9, 9, 18, 3, 3, 18, 9, 3, 9, 9, 3, 27, 3, 6, 18, 3, 18, 9, 3, 3, 9, 9, 9, 30, 3, 3, 27 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

A kind of core or backbone of A145511, A145501 and A145444.

LINKS

Table of n, a(n) for n=0..97.

CROSSREFS

Sequence in context: A141695 A100026 A100049 * A134059 A219915 A219217

Adjacent sequences:  A158312 A158313 A158314 * A158316 A158317 A158318

KEYWORD

nonn

AUTHOR

Paul Curtz, Mar 16 2009

EXTENSIONS

Edited and extended by R. J. Mathar, Apr 04 2009

STATUS

approved

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

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

Last modified July 28 18:22 EDT 2014. Contains 245005 sequences.