${\displaystyle b_{1}=0-{\frac {1}{2}}}$

${\displaystyle b_{2}=1-{\frac {1}{2}}-{\frac {1}{3}}={\frac {1}{6}}}$

${\displaystyle b_{4}=1-{\frac {1}{2}}-{\frac {1}{3}}-{\frac {1}{5}}=-{\frac {1}{30}}}$

${\displaystyle b_{6}=1-{\frac {1}{2}}-{\frac {1}{3}}-{\frac {1}{7}}={\frac {1}{42}}}$

${\displaystyle (b_{8}=b_{4})}$

${\displaystyle b_{10}=1-{\frac {1}{2}}-{\frac {1}{3}}-{\frac {1}{11}}={\frac {5}{66}}}$

${\displaystyle b_{12}=1-{\frac {1}{2}}-{\frac {1}{3}}-{\frac {1}{5}}-{\frac {1}{7}}-{\frac {1}{13}}=-{\frac {691}{2\;730}}}$

${\displaystyle b_{14}=2-{\frac {1}{2}}-{\frac {1}{3}}={\frac {7}{6}}}$ ${\displaystyle (b_{14}=b_{2}+1)}$

${\displaystyle b_{16}=-6-{\frac {1}{2}}-{\frac {1}{3}}-{\frac {1}{5}}-{\frac {1}{17}}=-{\frac {3\;617}{510}}}$

${\displaystyle b_{18}=56-{\frac {1}{2}}-{\frac {1}{3}}-{\frac {1}{7}}-{\frac {1}{19}}={\frac {43\;867}{798}}}$

${\displaystyle b_{20}=-528-{\frac {1}{2}}-{\frac {1}{3}}-{\frac {1}{5}}-{\frac {1}{11}}=-{\frac {174\;611}{330}}}$

${\displaystyle b_{22}=6\;193-{\frac {1}{2}}-{\frac {1}{3}}-{\frac {1}{23}}={\frac {854\;513}{138}}}$

${\displaystyle b_{24}=-86\;579-{\frac {1}{2}}-{\frac {1}{3}}-{\frac {1}{5}}-{\frac {1}{7}}-{\frac {1}{13}}=-{\frac {236\;364\;091}{2\;730}}}$

${\displaystyle (b_{24}=-86\;580+b_{12})}$