login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A044120 Numbers n such that string 3,0 occurs in the base 6 representation of n but not of n-1. 1
18, 54, 90, 108, 126, 162, 198, 234, 270, 306, 324, 342, 378, 414, 450, 486, 522, 540, 558, 594, 630, 648, 702, 738, 756, 774, 810, 846, 882, 918, 954, 972, 990, 1026, 1062, 1098, 1134, 1170, 1188, 1206, 1242, 1278, 1314, 1350 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

MATHEMATICA

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 6], {3, 0}]>0, 1, 0], {n, 1500}], {0, 1}][[All, 2]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Apr 23 2019 *)

CROSSREFS

Sequence in context: A176026 A068396 A205874 * A056808 A044501 A163758

Adjacent sequences:  A044117 A044118 A044119 * A044121 A044122 A044123

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 27 22:36 EDT 2020. Contains 337388 sequences. (Running on oeis4.)