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!)
A044063 Numbers n such that string 0,2 occurs in the base 4 representation of n but not of n-1. 0
18, 34, 50, 66, 72, 82, 98, 114, 130, 136, 146, 162, 178, 194, 200, 210, 226, 242, 258, 264, 274, 288, 306, 322, 328, 338, 354, 370, 386, 392, 402, 418, 434, 450, 456, 466, 482, 498, 514, 520, 530, 544, 562, 578, 584, 594, 610 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..47.

MATHEMATICA

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 4], {0, 2}]>0, 1, 0], {n, 700}], {0, 1}][[All, 2]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jul 05 2019 *)

CROSSREFS

Sequence in context: A296860 A190150 A347369 * A044444 A250770 A014640

Adjacent sequences:  A044060 A044061 A044062 * A044064 A044065 A044066

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 23 05:33 EDT 2021. Contains 347609 sequences. (Running on oeis4.)