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

 

Logo

Annual Appeal: Please make a donation to keep the OEIS running. In 2018 we replaced the server with a faster one, added 20000 new sequences, and reached 7000 citations (often saying "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A080038 Start with a(1)=3; apply 3 -> 343, 4 -> 3443; iterate. 0
3, 3, 4, 3, 3, 4, 3, 3, 4, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 4, 3, 3, 4, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 4, 3, 3, 4, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 4, 3, 3, 4, 4, 3, 3, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(n)= A080753(n+1) - A080753(n). Sum of first n terms + 2 = A080753(n).

LINKS

Table of n, a(n) for n=1..105.

EXAMPLE

3 -> 343 -> 3433443343 -> ...

CROSSREFS

Cf. A079000, A079948.

Sequence in context: A005536 A172515 A188590 * A121937 A003034 A091282

Adjacent sequences:  A080035 A080036 A080037 * A080039 A080040 A080041

KEYWORD

easy,nonn

AUTHOR

Matthew Vandermast, Mar 14 2003

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 12 18:24 EST 2018. Contains 318081 sequences. (Running on oeis4.)