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Integrate & differentiate power series

f(x)=n=0(1)nx2n+3(2n+1)!\displaystyle f(x)=\sum\limits_{n=0}^{\infty }{{{\left( -1 \right)}^{n}}\frac{{{x}^{2n+3}}}{\left( 2n+1 \right)!}}
f(0)=f'''(0)=
  • Your answer should be
  • an integer, like 66
  • an exact decimal, like 0.750.75
  • a simplified proper fraction, like 3/53/5
  • a simplified improper fraction, like 7/47/4
  • a mixed number, like 1 3/41\ 3/4