login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A175426 Starting values for which iteration of the map x->A175420(x) never reaches a single-digit value. 7
25, 26, 35, 36, 125, 126, 135, 136, 215, 216, 315, 316, 1125, 1126, 1135, 1136, 1215, 1216, 1315, 1316 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Arguments m such that A175424(m) = -1. Complement of A175427.

LINKS

Table of n, a(n) for n=1..20.

EXAMPLE

26 is in the sequence because starting with 26 the iterations enter a cycle of 2- and 3-digit numbers: 6^2 = 36, 6^3 = 216, (6^1)^2 = 36, 6^3 = 216, (6^1)^2 = 36, ...

CROSSREFS

Cf. A175419, A175420, A175421, A175422, A175423, A175424, A175425, A175427.

Sequence in context: A111168 A349865 A195331 * A045567 A141278 A022395

Adjacent sequences: A175423 A175424 A175425 * A175427 A175428 A175429

KEYWORD

nonn,base,more

AUTHOR

Jaroslav Krizek, May 09 2010

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 5 02:30 EST 2022. Contains 358572 sequences. (Running on oeis4.)