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!)
A044781 Numbers n such that string 6,8 occurs in the base 10 representation of n but not of n+1. 0
68, 168, 268, 368, 468, 568, 668, 689, 768, 868, 968, 1068, 1168, 1268, 1368, 1468, 1568, 1668, 1689, 1768, 1868, 1968, 2068, 2168, 2268, 2368, 2468, 2568, 2668, 2689, 2768, 2868, 2968, 3068, 3168, 3268, 3368, 3468, 3568 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n], {6, 8}]>0, 1, 0], {n, 4000}], {1, 0}][[All, 1]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Mar 06 2020 *)
CROSSREFS
Sequence in context: A211687 A256023 A044400 * A317807 A292344 A189810
KEYWORD
nonn,base
AUTHOR
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 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)