Greetings from
The On-Line Encyclopedia of Integer Sequences
!
Hints
Search:
id:A139047
Displaying 1-1 of 1 results found.
page 1
Format:
long
| short |
internal
|
text
Sort: relevance |
references
|
number
Highlight: on |
off
A139047
a(0)=a(1)=1. For n >= 2, if a(n-1) is coprime to n, then a(n) = a(n-1)+a(n-2). Otherwise, a(n)=1.
+0
1
1, 1, 2, 3, 5, 1, 6, 7, 13, 20, 1, 21, 1, 22, 1, 23, 24, 47, 71, 118, 1, 119, 120, 239, 359, 598, 1, 599, 600, 1199, 1799, 2998, 1, 2999, 3000, 1, 3001, 3002, 1, 3003, 3004
(
list
;
graph
;
listen
)
page 1
Search completed in 0.001 seconds
Lookup
|
Welcome
|
Find friends
|
Music
|
Plot 2
|
Demos
|
Index
|
Browse
|
More
|
WebCam
Contribute new seq. or comment
|
Format
|
Transforms
|
Puzzles
|
Hot
|
Classics
More pages
|
Superseeker
|
Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 27 22:38 EST 2009. Contains 167602 sequences.
AT&T Labs Research
Legal Notice
© 2009 AT&T Intellectual Property.
All Rights Reserved.
