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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A010421 Squares mod 60.

Original entry on oeis.org

0, 1, 4, 9, 16, 21, 24, 25, 36, 40, 45, 49
Offset: 1

Views

Author

N. J. A. Sloane

Keywords

Comments

Range of A159852. - Reinhard Zumkeller, Apr 24 2009

Crossrefs

Cf. A010378, A010382, A010462. - Reinhard Zumkeller, Apr 24 2009
Row 60 of A096008.
Cf. A028773, A159852.

Programs

  • Magma
    [n: n in [0..59] | IsSquare(R! n) where R:= ResidueClassRing(60)]; // Vincenzo Librandi, Jan 05 2020
  • Mathematica
    Union[PowerMod[Range[60], 2, 60]] (* Alonso del Arte, Jan 03 2020 *)
  • Sage
    [quadratic_residues(60)] # Zerinvary Lajos, May 24 2009
  • Scala
    (1 to 60).map(n => n * n % 60).toSet.toSeq.sorted // Alonso del Arte, Jan 03 2020
Showing 1-1 of 1 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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