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 1-3 of 3 results.

A096718 Denominators of terms in series expansion of arcsin(arctan(x)).

Original entry on oeis.org

1, 6, 120, 5040, 362880, 4435200, 32947200, 145297152000, 69701632000, 13516122267648000, 5676771352412160000, 2872446304320552960000, 1723467782592331776000000, 1935799013407707050803200, 485144691014524112732160000, 1353553687930522274522726400000, 204193242064947360270857011200000
Offset: 0

Views

Author

N. J. A. Sloane, Aug 15 2004

Keywords

Examples

			arcsin(arctan(x)) = x - 1/6*x^3 + 13/120*x^5 - 341/5040*x^7 + 18649/362880*x^9 - 177761/4435200*x^11 + ...
		

Crossrefs

Programs

  • Mathematica
    Denominator[Take[CoefficientList[Series[ArcSin[ArcTan[x]], {x,0,40}], x], {2,-1,2}]] (* G. C. Greubel, Nov 17 2016 *)

A096717 Numerators of terms in series expansion of arcsin(arctan(x)).

Original entry on oeis.org

1, -1, 13, -341, 18649, -177761, 1087433, -4043494549, 1674761567, -284891766539657, 106410874319325461, -48402125366670946877, 26344930021064765797249, -27048608191991004321089, 6237195766537863970288933, -16102066950215127630856787159, 2258820895862623437612519923989
Offset: 0

Views

Author

N. J. A. Sloane, Aug 15 2004

Keywords

Examples

			arcsin(arctan(x)) = x - 1/6*x^3 + 13/120*x^5 - 341/5040*x^7 + 18649/362880*x^9 - 177761/4435200*x^11 + ...
		

Crossrefs

Programs

  • Mathematica
    Numerator[Take[CoefficientList[Series[ArcSin[ArcTan[x]], {x,0,50}], x], {2, -1, 2}]] (* G. C. Greubel, Nov 17 2016 *)

A096722 Denominators of terms in series expansion of arcsin(arctan(x)) - arctan(arcsin(x)).

Original entry on oeis.org

1, 1, 1, 30, 756, 75600, 199584, 54486432000, 2421619200, 151227648000, 5913303492096000, 5203707073044480000, 512936840057241600000, 5041143264082570444800000, 1238175538546596249600000, 11695452372671563431936000000, 33500453776280426294437478400000, 44295044437526341433756221440000000
Offset: 0

Views

Author

N. J. A. Sloane, Aug 15 2004

Keywords

Examples

			 arcsin(arctan(x)) - arctan(arcsin(x)) = -1/30*x^7 + 13/756*x^9 - 2329/75600*x^11 + 3749/199584*x^13 - 1405132357/54486432000*x^15 + ...
		

Crossrefs

Programs

  • Mathematica
    Denominator[Take[CoefficientList[Series[ArcSin[ArcTan[x]] - ArcTan[ArcSin[x]], {x,0,40}], x], {2,-1,2}]] (* G. C. Greubel, Nov 18 2016 *)
Showing 1-3 of 3 results.