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!)
A044972 Numbers n with property that in base-3 representation the numbers of 0's and 1's are 1 and 2, respectively. 2
10, 12, 32, 34, 38, 42, 46, 48, 58, 64, 66, 98, 104, 106, 116, 128, 132, 140, 142, 146, 150, 154, 156, 176, 178, 184, 194, 196, 200, 204, 208, 210, 220, 226, 228, 296, 314, 320, 322, 350, 386, 398, 402, 422, 428, 430, 440, 452 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

David A. Corneth, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Range[500], DigitCount[#, 3, 0]==1&&DigitCount[#, 3, 1]==2&] (* Harvey P. Dale, Aug 19 2019 *)

PROG

(PARI) is(n)=my(d=digits(n, 3), fr=vector(3)); for(i=1, #d, fr[d[i]+1]++); fr[1]==1&&fr[2]==2 \\ David A. Corneth, Aug 19 2019

CROSSREFS

Cf. A024023.

Sequence in context: A015728 A080470 A087217 * A132313 A324745 A267393

Adjacent sequences: A044969 A044970 A044971 * A044973 A044974 A044975

KEYWORD

nonn,easy,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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 1 18:19 EST 2023. Contains 359995 sequences. (Running on oeis4.)