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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A350977 Numbers k such that x^3 - y^2 = k has no solution.

Original entry on oeis.org

3, 4, 6, 9, 10, 12, 14, 17, 21, 22, 27, 30, 33, 34, 37, 41, 42, 46, 50, 57, 58, 62, 65, 66, 69, 70, 73, 75, 77, 78, 82, 85, 86, 90, 93, 94, 97, 98, 171, 176, 275, 475, 539, 1315, 2288, 2743, 5491
Offset: 1

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Author

N. J. A. Sloane, Mar 06 2022

Keywords

Comments

The 4 seems to be in error here, because x=2, y=2 or x=5, y=11 are a solution to x^3-y^2=4. [No entry here should be in A087285]. - R. J. Mathar, Mar 07 2022
Apparently y>0 is enforced; otherwise x=3, y=0 would solve x^3-y^2=27. - R. J. Mathar, Mar 07 2022

References

  • H. Brocard, Query 2312, L'Intermédiaire des Mathématiciens, 10 (1903), 283-284.

Crossrefs

Cf. A350976. Apparently an erroneous version of A081121.
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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