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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.

User: Jon Hearn

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Jon Hearn has authored 1 sequences.

A228437 Denominator of n/24.

Original entry on oeis.org

1, 24, 12, 8, 6, 24, 4, 24, 3, 8, 12, 24, 2, 24, 12, 8, 3, 24, 4, 24, 6, 8, 12, 24, 1, 24, 12, 8, 6, 24, 4, 24, 3, 8, 12, 24, 2, 24, 12, 8, 3, 24, 4, 24, 6, 8, 12, 24, 1, 24, 12, 8, 6, 24, 4, 24, 3, 8, 12, 24, 2, 24, 12, 8, 3, 24, 4, 24, 6, 8, 12, 24, 1
Offset: 0

Author

Jon Hearn, Nov 10 2013

Keywords

Comments

Periodic of period length 24.

Programs

  • Maple
    A228437 := proc(n)
        denom(n/24) ;
    end proc: # R. J. Mathar, Dec 18 2013
  • Mathematica
    Denominator[Range[0,80]/24] (* or *) PadRight[{},80,{1,24,12,8,6,24,4,24,3,8,12,24,2,24,12,8,3,24,4,24,6,8,12,24}] (* Harvey P. Dale, Jan 17 2017 *)

Formula

G.f.: ( -1 -24*x -12*x^2 -8*x^3 -6*x^4 -24*x^5 -4*x^6 -24*x^7 -3*x^8 -8*x^9 -12*x^10 -24*x^11 -2*x^12 -24*x^13 -12*x^14 -8*x^15 -3*x^16 -24*x^17 -4*x^18 -24*x^19 -6*x^20 -8*x^21 -12*x^22 -24*x^23 ) / ( (x-1)*(1+x+x^2)*(1+x)*(1-x+x^2)*(1+x^2)*(x^4-x^2+1)*(1+x^4)*(x^8-x^4+1) ). - R. J. Mathar, Dec 18 2013