Abstract
This paper studies the existence of solutions for a six-point boundary value problem of coupled system of nonlinear Caputo (Liouville-Caputo) type sequential fractional integro-differential equations supplemented with coupled nonlocal Riemann-Liouville integral boundary conditions. Our results are based on some classical results of the fixed-point theory. An example is constructed to demonstrate the application of our work. Some interesting observations are also presented.