161051, 102487, 65219, 41503, continue the sequence plz ?
This is a geometric sequence with ratio
$$\small{\text{$r= \dfrac{102487}{161051} = \dfrac{65219}{102487} = \dfrac{41503}{65219}= \dfrac{63}{99} $}}$$
$$t_5=t_4\cdot r=41503 \cdot r=26411$$