Cosmological solutions in modified gravity with monomial nonlocality

We consider cosmological properties of modified gravity with nonlocal term RpF(□)RqRpF(□)Rq in its Lagrangian. Equations of motion are presented. For the flat FLRW metric, and some particular values of natural numbers p and q   cosmological solutions of the form a(t)=Ce−γ12t2 are found.