The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A043961 Numbers k such that 0 and 2 occur juxtaposed in the base-9 representation of k but not of k+1. 0
18, 83, 99, 170, 180, 245, 261, 326, 342, 407, 423, 488, 504, 569, 585, 650, 666, 731, 755, 812, 828, 899, 909, 974, 990, 1055, 1071, 1136, 1152, 1217, 1233, 1298, 1314, 1379, 1395, 1538, 1541, 1557, 1628, 1638, 1703, 1719 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 9], {0, 2}]>0 || SequenceCount[IntegerDigits[n, 9], {2, 0}]>0, 1, 0], {n, 1800}], {1, 0}][[All, 1]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Oct 12 2020 *)
CROSSREFS
Cf. A007095.
Sequence in context: A159460 A043181 A039358 * A067984 A281372 A124935
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 May 21 02:29 EDT 2024. Contains 372720 sequences. (Running on oeis4.)