  We perform numerical simulations of odd microswimmers consisting of three
spheres and two odd springs. To describe the hydrodynamic interaction, both the
Oseen-type and the Rotne-Prager-Yamakawa (RPY)-type mobilities are used. For
the Oseen-type mobility, the simulation results quantitatively reproduce the
asymptotic expression of the average velocity. For the RPY-type mobility, on
the other hand, the average velocity is smaller than that of the Oseen-type
mobility and the deviation is more pronounced for larger spheres. We also
perform simulations of microswimmers having different sphere sizes and show
that the average velocity becomes smaller than that of the equal size case. The
size of the middle sphere plays an important role in determining the average
velocity.
