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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A029509 Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 16 (most significant digit on right). 1
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 25, 45, 163, 234, 661, 1034, 1191, 1415, 1835, 2094, 3143, 3284, 3459, 3638, 3915, 5215, 16620, 18505, 18790, 31965, 36600, 140835, 175302, 187170, 190545, 283115, 6926085, 7607655 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
This sequence differs from A061945 in that all least significant zeros are kept during concatenation.
No more terms < 10^7. [Lars Blomberg, Oct 09 2011]
LINKS
EXAMPLE
See A029495 for example.
MATHEMATICA
b = 16; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[c, Reverse[IntegerDigits[#, b]]], b], #] &] (* Robert Price, Mar 13 2020 *)
CROSSREFS
Sequence in context: A329469 A018412 A061945 * A364541 A048645 A173786
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002
Additional comments and more terms from Larry Reeves (larryr(AT)acm.org), May 25 2001
a(38)-a(39) from Lars Blomberg, Oct 09 2011
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 March 19 07:36 EDT 2024. Contains 370956 sequences. (Running on oeis4.)