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.

A100417 Numbers n such that P(n) = P(B(n)), where P() = A100549() and B() = A100762.

Original entry on oeis.org

1, 2, 4, 6, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42, 44, 45, 46, 48, 52, 54, 56, 58, 60, 62, 63, 64, 66, 68, 70, 72, 74, 76, 78, 80, 81, 82, 84, 86, 88, 90, 92, 94, 96, 99, 100, 102, 104, 106, 108, 110, 112, 114, 116, 117, 118, 120, 122, 124, 126
Offset: 1

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Author

David Applegate and N. J. A. Sloane, Sep 15 2008

Keywords

Crossrefs

Programs

  • Maple
    # First load the Maple programs from A100549 and A100762
    # Bgood = (is pp(n) = pp(B(n))), that is, is B(n) enough to establish pp(n)?
    Bgood := proc(n) global pp;
    `if`(pp(B(n))=pp(n),true,false);
    end proc;
    select(Bgood, [$1..200]);