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.

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A032583 Numbers which are neither prime nor lucky.

Original entry on oeis.org

4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 50, 52, 54, 55, 56, 57, 58, 60, 62, 64, 65, 66, 68, 70, 72, 74, 76, 77, 78, 80, 81, 82, 84, 85, 86, 88, 90, 91, 92, 94, 95, 96, 98, 100, 102, 104, 106, 108
Offset: 1

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Author

Patrick De Geest, Apr 15 1998

Keywords

Comments

Except for 2, sequence includes all positive even integers. First odd term is 27. - Alonso del Arte, Jun 20 2017

Crossrefs

Cf. A000040, A000959, A032584, A031157.

Programs

  • Mathematica
    (* First run one of the programs for A000959 to define the list luckies *) max = 200; Complement[Range[max], Prime[Range[PrimePi[max]]], luckies] (* Alonso del Arte, Jun 14 2017 *)
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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