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.

A043485 Numbers having one 8 in base 9.

Original entry on oeis.org

8, 17, 26, 35, 44, 53, 62, 71, 72, 73, 74, 75, 76, 77, 78, 79, 89, 98, 107, 116, 125, 134, 143, 152, 153, 154, 155, 156, 157, 158, 159, 160, 170, 179, 188, 197, 206, 215, 224, 233, 234, 235, 236, 237, 238, 239, 240, 241, 251, 260, 269, 278, 287, 296, 305, 314
Offset: 1

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Crossrefs

Cf. A007095 (numbers in base 9), A338090.

Programs

  • Mathematica
    Select[Range[300],DigitCount[#,9,8]==1&] (* Harvey P. Dale, Jun 26 2011 *)
  • PARI
    isok(m) = #select(x->(x==8), digits(m, 9)) == 1; \\ Michel Marcus, Oct 13 2020

Extensions

Name edited by Michel Marcus, Oct 13 2020