  ![\[fig:nct\_xi0\_0\]Time evolutions of the mean cluster size for squirmers when $\xi=0.0$ (pullers: red [squares]{} and black [circles]{}; neutral: blue [up triangles]{}; pushers: pink [down-triangles]{} and grey [diamonds]{}). (a) AP squirmers with $r_c=0.0\sigma$ and (b) $r_c=0.0\sigma$, (c) WP squirmers with $r_c=0.0\sigma$ and (d) $r_c=0.0\sigma$. Note the different scale on the y-axis.](ntxi00rc00ttbis.pdf "fig:"){width="0.00\columnwidth"} ![\[fig:nct\_xi0\_0\]Time evolutions of the mean cluster size for squirmers when $\xi=0.0$ (pullers: red [squares]{} and black [circles]{}; neutral: blue [up triangles]{}; pushers: pink [down-triangles]{} and grey [diamonds]{}). (a) AP squirmers with $r_c=0.0\sigma$ and (b) $r_c=0.0\sigma$, (c) WP squirmers with $r_c=0.0\sigma$ and (d) $r_c=0.0\sigma$. Note the different scale on the y-axis.](ntxi00rc00ttbis.pdf "fig:"){width="0.00\columnwidth"} ![\[fig:nct\_xi0\_0\]Time evolutions of the mean cluster size for squirmers when $\xi=0.0$ (pullers: red [squares]{} and black [circles]{}; neutral: blue [up triangles]{}; pushers: pink [down-triangles]{} and grey [diamonds]{}). (a) AP squirmers with $r_c=0.0\sigma$ and (b) $r_c=0.0\sigma$, (c) WP squirmers with $r_c=0.0\sigma$ and (d) $r_c=0.0\sigma$. Note the different scale on the y-axis.](ntxi00rc00hhbis.pdf "fig:"){width="0.00\columnwidth"}   ![\[fig:nct\_xi0\_0\]Time evolutions of the mean cluster size for squirmers when $\xi=0.0$ (pullers: red [squares]{} and black [circles]{}; neutral: blue [up triangles]{}; pushers: pink [down-triangles]{} and grey [diamonds]{}). (a) AP squirmers with $r_c=0.0\sigma$ and (b) $r_c=0.0\sigma$, (c) WP squirmers with $r_c=0.0\sigma$ and (d) $r_c=0.0\sigma$. Note the different scale on the y-axis.](ntxi00rc00hhbis.pdf "fig:"){width="0.00\columnwidth"}  Fig. \[fig:nct\_xi0\_0\] represents the mean cluster size as a function of time for suspensions where attraction 