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.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A023733 Numbers with no 3's in base-5 expansion. 8
 0, 1, 2, 4, 5, 6, 7, 9, 10, 11, 12, 14, 20, 21, 22, 24, 25, 26, 27, 29, 30, 31, 32, 34, 35, 36, 37, 39, 45, 46, 47, 49, 50, 51, 52, 54, 55, 56, 57, 59, 60, 61, 62, 64, 70, 71, 72, 74, 100, 101, 102, 104, 105, 106, 107, 109, 110, 111, 112, 114 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS Nathaniel Johnston, Table of n, a(n) for n = 1..10000 Index entries for 5-automatic sequences. EXAMPLE 14 in base 5 is 24, which contains no 3's, so 14 is in the sequence. 15 in base 5 is 30, so 15 is not in the sequence. MAPLE seq(`if`(numboccur(3, convert(n, base, 5))=0, n, NULL), n=0..127); # Nathaniel Johnston, Jun 27 2011 MATHEMATICA Select[Range[0, 124], Count[IntegerDigits[#, 5], 3] == 0 &] PROG (PARI) is(n)=while(n>3, if(n%5==3, return(0)); n\=5); 1 \\ Charles R Greathouse IV, Feb 12 2017 (Scala) (0 to 124).filter(Integer.toString(_, 5).indexOf("3") == -1) // Alonso del Arte, Feb 05 2019 CROSSREFS Cf. A020654, A023721, A023725, A023729. Sequence in context: A349829 A230633 A024616 * A154112 A039101 A140102 Adjacent sequences: A023730 A023731 A023732 * A023734 A023735 A023736 KEYWORD nonn,base,easy AUTHOR Olivier Gérard 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.

Last modified May 20 14:08 EDT 2024. Contains 372717 sequences. (Running on oeis4.)