  Striped phases, in which spin, charge, and pairing correlations vary
inhomogeneously in the CuO_2 planes, are a known experimental feature of
cuprate superconductors, and are also found in a variety of numerical
treatments of the two dimensional Hubbard Hamiltonian. In this paper we use
determinant Quantum Monte Carlo to show that if a stripe density pattern is
imposed on the model, the d-wave pairing vertex is significantly enhanced. We
attribute this enhancement to an increase in antiferromagnetic order which is
caused by the appearence of more nearly half-filled regions when the doped
holes are confined to the stripes. We also observe a \pi-phase shift in the
magnetic order.
