Theory of superconductor-ferromagnet (S-F) heterostructures with two and more ferromagnetic layers predicts generation of a long-range, odd-in-frequency triplet pairing at noncollinear alignment (NCA) of the F-layers magnetizations. Following the ideas of the superconducting triplet spin-valve we have detected that triplet pairing: switching of the proximity effect coupled Co/CoOx/Cu41Ni59/Nb/Cu41Ni59 heterostructures from normal to superconducting state. The resistance of the sample as a function of an external magnetic field shows that the system is superconducting at the collinear alignment of the Cu41Ni59 and Co layers magnetic moments, but switches to the normal conducting state at the NCA configuration. The existence of the Tc minimum at the NCA regime is consistent with the theoretical prediction of the long-range triplet pairing appearance. The observed memory effect, caused by generation of the triplet pairing at non-collinear magnetic configurations in the investigated nanostructures, seems to be promising for practical applications in superconducting spintronics.