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!)
A044697 Numbers n such that string 7,2 occurs in the base 9 representation of n but not of n+1. 0
65, 146, 227, 308, 389, 470, 551, 593, 632, 713, 794, 875, 956, 1037, 1118, 1199, 1280, 1322, 1361, 1442, 1523, 1604, 1685, 1766, 1847, 1928, 2009, 2051, 2090, 2171, 2252, 2333, 2414, 2495, 2576, 2657, 2738, 2780, 2819 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 9], {7, 2}]>0, 1, 0], {n, 3000}], {1, 0}][[All, 1]] (* Harvey P. Dale, Apr 09 2022 *)
CROSSREFS
Sequence in context: A345700 A121944 A044316 * A350209 A326157 A044397
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 June 15 16:55 EDT 2024. Contains 373410 sequences. (Running on oeis4.)