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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A165291 Complement of A165289.

Original entry on oeis.org

2, 4, 5, 6, 7, 10, 11, 13, 14, 16, 20, 21, 23, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 39, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 56, 58, 59, 60, 61, 62, 63, 66, 67, 69, 70, 72, 74, 75, 76, 77, 78, 81, 82, 83, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 99, 102
Offset: 1

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Keywords

Comments

Numbers which are impossible values for the difference of a square minus the nearest smaller or equal cube.

Crossrefs

Programs

  • Mathematica
    lst={};Do[a=(x=n^2)-(y=Floor[(n^2)^(1/3)]^3);If[a<=416,AppendTo[lst,a]], {n,8!}];Take[Union@lst,100]; lst1={};Do[AppendTo[lst1,n],{n,416}]; lst1; Complement[lst1,lst]

Extensions

Definition simplified - R. J. Mathar, Sep 21 2009
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