cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A168501 Numbers without the decimal digits 2, 4 and 6.

Original entry on oeis.org

0, 1, 3, 5, 7, 8, 9, 10, 11, 13, 15, 17, 18, 19, 30, 31, 33, 35, 37, 38, 39, 50, 51, 53, 55, 57, 58, 59, 70, 71, 73, 75, 77, 78, 79, 80, 81, 83, 85, 87, 88, 89, 90, 91, 93, 95, 97, 98, 99, 100, 101, 103, 105, 107, 108, 109, 110, 111, 113, 115, 117, 118, 119, 130, 131, 133
Offset: 1

Views

Author

Juri-Stepan Gerasimov, Nov 27 2009

Keywords

Comments

Numbers that contain non-single or nonisolated digits only (see the first seven values of A167707 for the digits that are not 2, 4, or 6).

Crossrefs

Programs

  • Magma
    [n: n in [0..200] | IsEmpty(Set([2,4,6]) meet Set(Intseq(n)))]; // Bruno Berselli, Jul 25 2016
  • Mathematica
    Select[Select[Select[Range[0, 4500], FreeQ[IntegerDigits@#, 2] &], FreeQ[IntegerDigits@#, 4] &], FreeQ[IntegerDigits@#, 6] &] (* G. C. Greubel, Jul 24 2016 *)

Extensions

Corrected (114 removed) by R. J. Mathar, Jun 04 2010