Maple
x − 1 3 x 3 + 2 15 x 5 − 17 315 x 7 {\displaystyle x-{\frac {1}{3}}\,x^{3}+{\frac {2}{15}}\,x^{5}-{\frac {17}{315}}\,x^{7}}
+ 62 2835 x 9 − 1382 155925 x 11 + 21844 6081075 x 13 + O ( x 15 ) {\displaystyle {}+{\frac {62}{2835}}\,x^{9}-{\frac {1382}{155925}}\,x^{11}+{\frac {21844}{6081075}}\,x^{13}+{\mathcal {O}}\left(x^{15}\right)}