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.

Showing 1-2 of 2 results.

A010398 Squares mod 37.

Original entry on oeis.org

0, 1, 3, 4, 7, 9, 10, 11, 12, 16, 21, 25, 26, 27, 28, 30, 33, 34, 36
Offset: 1

Views

Author

N. J. A. Sloane

Keywords

Comments

A070459 sorted, dulicates removed. - R. J. Mathar, Jan 12 2024

Crossrefs

Cf. A010435, A028750.

Programs

  • Magma
    [n: n in [0..36] | IsSquare(R! n) where R:= ResidueClassRing(37)]; // Vincenzo Librandi Jan 31 2020
  • Mathematica
    Union[PowerMod[Range[37], 2, 37]] (* Vincenzo Librandi, Jan 31 2020 *)
  • Sage
    [quadratic_residues(37)] # Zerinvary Lajos, May 24 2009

A028787 Nonsquares mod 74.

Original entry on oeis.org

2, 5, 6, 8, 13, 14, 15, 17, 18, 19, 20, 22, 23, 24, 29, 31, 32, 35, 39, 42, 43, 45, 50, 51, 52, 54, 55, 56, 57, 59, 60, 61, 66, 68, 69, 72
Offset: 1

Views

Author

N. J. A. Sloane

Keywords

Crossrefs

Cf. A010435.

Programs

  • PARI
    for(k=0,74,if(!issquare(Mod(k,74)),print1(k,", "))) \\ Hugo Pfoertner, Nov 29 2019

Extensions

Incorrect term 37 removed by Alonso del Arte, Nov 29 2019
Showing 1-2 of 2 results.

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

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