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!)
A044562 Numbers n such that string 6,1 occurs in the base 7 representation of n but not of n+1. 0
43, 92, 141, 190, 239, 288, 307, 337, 386, 435, 484, 533, 582, 631, 650, 680, 729, 778, 827, 876, 925, 974, 993, 1023, 1072, 1121, 1170, 1219, 1268, 1317, 1336, 1366, 1415, 1464, 1513, 1562, 1611, 1660, 1679, 1709, 1758, 1807 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 7], {6, 1}]>0, 1, 0], {n, 2000}], {1, 0}][[;; , 1]] (* Harvey P. Dale, Mar 05 2023 *)
CROSSREFS
Sequence in context: A122617 A306114 A044181 * A060323 A141958 A141990
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 22 13:22 EDT 2024. Contains 372755 sequences. (Running on oeis4.)