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.

Previous Showing 41-50 of 74 results. Next

A021548 Decimal expansion of 1/544.

Original entry on oeis.org

0, 0, 1, 8, 3, 8, 2, 3, 5, 2, 9, 4, 1, 1, 7, 6, 4, 7, 0, 5, 8, 8, 2, 3, 5, 2, 9, 4, 1, 1, 7, 6, 4, 7, 0, 5, 8, 8, 2, 3, 5, 2, 9, 4, 1, 1, 7, 6, 4, 7, 0, 5, 8, 8, 2, 3, 5, 2, 9, 4, 1, 1, 7, 6, 4, 7, 0, 5, 8, 8, 2, 3, 5, 2, 9, 4, 1, 1, 7, 6, 4, 7, 0, 5, 8, 8, 2, 3, 5, 2, 9, 4, 1, 1, 7, 6, 4, 7, 0
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Links

Programs

  • Mathematica
    realDigitsRecip[544] (* The realDigitsRecip program is at A021200 *) (* Harvey P. Dale, May 30 2025 *)

A021554 Decimal expansion of 1/550.

Original entry on oeis.org

0, 0, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Comments

A021059 shifted right, A010689 shifted right twice. [From R. J. Mathar, Oct 25 2008]

Links

Programs

  • Mathematica
    realDigitsRecip[550] (* The realDigitsRecip program is at A021200 *)  (* or *) PadRight[{0,0},120,{1,8}] (* Harvey P. Dale, Dec 28 2024 *)
  • PARI
    { default(realprecision); x=1/550*10; for(n=1, 100, d=floor(x); x=(x-d)*10; print1(d, ", ")) } \\ Felix Fröhlich, Aug 11 2014

A021563 Decimal expansion of 1/559.

Original entry on oeis.org

0, 0, 1, 7, 8, 8, 9, 0, 8, 7, 6, 5, 6, 5, 2, 9, 5, 1, 6, 9, 9, 4, 6, 3, 3, 2, 7, 3, 7, 0, 3, 0, 4, 1, 1, 4, 4, 9, 0, 1, 6, 1, 0, 0, 1, 7, 8, 8, 9, 0, 8, 7, 6, 5, 6, 5, 2, 9, 5, 1, 6, 9, 9, 4, 6, 3, 3, 2, 7, 3, 7, 0, 3, 0, 4, 1, 1, 4, 4, 9, 0, 1, 6, 1, 0, 0, 1, 7, 8, 8, 9, 0, 8, 7, 6, 5, 6, 5, 2
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Links

Programs

  • Mathematica
    realDigitsRecip[559] (* The realDigitsRecip program is at A021200 *) (* Harvey P. Dale, Jul 03 2025 *)

A021566 Decimal expansion of 1/562.

Original entry on oeis.org

0, 0, 1, 7, 7, 9, 3, 5, 9, 4, 3, 0, 6, 0, 4, 9, 8, 2, 2, 0, 6, 4, 0, 5, 6, 9, 3, 9, 5, 0, 1, 7, 7, 9, 3, 5, 9, 4, 3, 0, 6, 0, 4, 9, 8, 2, 2, 0, 6, 4, 0, 5, 6, 9, 3, 9, 5, 0, 1, 7, 7, 9, 3, 5, 9, 4, 3, 0, 6, 0, 4, 9, 8, 2, 2, 0, 6, 4, 0, 5, 6, 9, 3, 9, 5, 0, 1, 7, 7, 9, 3, 5, 9, 4, 3, 0, 6, 0, 4
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Links

Programs

  • Mathematica
    Join[{0,0},RealDigits[1/562,10,120][[1]]] (* or *) PadRight[{0},120,{5,0,1,7,7,9,3,5,9,4,3,0,6,0,4,9,8,2,2,0,6,4,0,5,6,9,3,9}] (* Harvey P. Dale, Sep 03 2019 *)
realDigitsRecip[562] (* The realDigitsRecip program is at A021200 *) (* Harvey P. Dale, Aug 31 2024 *)

Formula

From Chai Wah Wu, Feb 03 2023: (Start)
a(n) = a(n-1) - a(n-14) + a(n-15) for n > 15.
G.f.: x^2*(-5*x^13 - 4*x^12 + 6*x^11 - 6*x^10 + 3*x^9 + x^8 + 5*x^7 - 4*x^6 - 2*x^5 + 6*x^4 - 2*x^3 - 6*x - 1)/(x^15 - x^14 + x - 1). (End)

A021567 Decimal expansion of 1/563.

Original entry on oeis.org

0, 0, 1, 7, 7, 6, 1, 9, 8, 9, 3, 4, 2, 8, 0, 6, 3, 9, 4, 3, 1, 6, 1, 6, 3, 4, 1, 0, 3, 0, 1, 9, 5, 3, 8, 1, 8, 8, 2, 7, 7, 0, 8, 7, 0, 3, 3, 7, 4, 7, 7, 7, 9, 7, 5, 1, 3, 3, 2, 1, 4, 9, 2, 0, 0, 7, 1, 0, 4, 7, 9, 5, 7, 3, 7, 1, 2, 2, 5, 5, 7, 7, 2, 6, 4, 6, 5, 3, 6, 4, 1, 2, 0, 7, 8, 1, 5, 2, 7
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Programs

  • Mathematica
    realDigitsRecip[563] (* The realDigitsRecip program is at A021200 *) (* Harvey P. Dale, May 11 2025 *)

A021573 Decimal expansion of 1/569.

Original entry on oeis.org

0, 0, 1, 7, 5, 7, 4, 6, 9, 2, 4, 4, 2, 8, 8, 2, 2, 4, 9, 5, 6, 0, 6, 3, 2, 6, 8, 8, 9, 2, 7, 9, 4, 3, 7, 6, 0, 9, 8, 4, 1, 8, 2, 7, 7, 6, 8, 0, 1, 4, 0, 5, 9, 7, 5, 3, 9, 5, 4, 3, 0, 5, 7, 9, 9, 6, 4, 8, 5, 0, 6, 1, 5, 1, 1, 4, 2, 3, 5, 5, 0, 0, 8, 7, 8, 7, 3, 4, 6, 2, 2, 1, 4, 4, 1, 1, 2, 4, 7
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Programs

  • Mathematica
    realDigitsRecip[569] (* The realDigitsRecip program is at A021200 *) (* Harvey P. Dale, Oct 17 2024 *)

A021576 Decimal expansion of 1/572.

Original entry on oeis.org

0, 0, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1, 7, 4, 8, 2, 5, 1
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Examples

			0.0017482517482517482517482517482517482517482517482517...

Links

Programs

  • Mathematica
    First[RealDigits[1/572, 10, 100, -1]] (* Paolo Xausa, Aug 23 2025 *)
realDigitsRecip[572] (* The realDigitsRecip program is at A021200 *) (* or *) PadRight[{0,0},120,{2,5,1,7,4,8}] (* Harvey P. Dale, Aug 27 2025 *)

Formula

From Chai Wah Wu, Jun 13 2020: (Start)
a(n) = a(n-1) - a(n-3) + a(n-4) for n > 5.
G.f.: x^2*(-5*x^3 + 3*x^2 - 6*x - 1)/(x^4 - x^3 + x - 1). (End)

A021577 Decimal expansion of 1/573.

Original entry on oeis.org

0, 0, 1, 7, 4, 5, 2, 0, 0, 6, 9, 8, 0, 8, 0, 2, 7, 9, 2, 3, 2, 1, 1, 1, 6, 9, 2, 8, 4, 4, 6, 7, 7, 1, 3, 7, 8, 7, 0, 8, 5, 5, 1, 4, 8, 3, 4, 2, 0, 5, 9, 3, 3, 6, 8, 2, 3, 7, 3, 4, 7, 2, 9, 4, 9, 3, 8, 9, 1, 7, 9, 7, 5, 5, 6, 7, 1, 9, 0, 2, 2, 6, 8, 7, 6, 0, 9, 0, 7, 5, 0, 4, 3, 6, 3, 0, 0, 1, 7
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Programs

  • Mathematica
    realDigitsRecip[573] (* The realDigitsRecip program is at A021200 *) (* Harvey P. Dale, Jul 02 2025 *)

A021595 Decimal expansion of 1/591.

Original entry on oeis.org

0, 0, 1, 6, 9, 2, 0, 4, 7, 3, 7, 7, 3, 2, 6, 5, 6, 5, 1, 4, 3, 8, 2, 4, 0, 2, 7, 0, 7, 2, 7, 5, 8, 0, 3, 7, 2, 2, 5, 0, 4, 2, 3, 0, 1, 1, 8, 4, 4, 3, 3, 1, 6, 4, 1, 2, 8, 5, 9, 5, 6, 0, 0, 6, 7, 6, 8, 1, 8, 9, 5, 0, 9, 3, 0, 6, 2, 6, 0, 5, 7, 5, 2, 9, 6, 1, 0, 8, 2, 9, 1, 0, 3, 2, 1, 4, 8, 9, 0
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Programs

  • Mathematica
    realDigitsRecip[591] (* The realDigitsRecip program is at A021200 *) (* Harvey P. Dale, Dec 24 2024 *)

A021603 Decimal expansion of 1/599.

Original entry on oeis.org

0, 0, 1, 6, 6, 9, 4, 4, 9, 0, 8, 1, 8, 0, 3, 0, 0, 5, 0, 0, 8, 3, 4, 7, 2, 4, 5, 4, 0, 9, 0, 1, 5, 0, 2, 5, 0, 4, 1, 7, 3, 6, 2, 2, 7, 0, 4, 5, 0, 7, 5, 1, 2, 5, 2, 0, 8, 6, 8, 1, 1, 3, 5, 2, 2, 5, 3, 7, 5, 6, 2, 6, 0, 4, 3, 4, 0, 5, 6, 7, 6, 1, 2, 6, 8, 7, 8, 1, 3, 0, 2, 1, 7, 0, 2, 8, 3, 8, 0
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Programs

  • Mathematica
    realDigitsRecip[599] (* The realDigitsRecip program is at A021200 *) (* Harvey P. Dale, Feb 09 2025 *)
Previous Showing 41-50 of 74 results. Next

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

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