  Transport and Cu-NQR studies have been carried out for the T*-type high
temperature superconducting Cu oxide Nd1.6-xCexSr0.4CuO4 with single layered
CuO2 planes formed by CuO5 pyramids. No anomaly related to the static or quasi
static "stripe" order has been observed in the temperature T and x dependence
of the thermoelectric powers S. We have not found such kind of anomaly in the x
dependence of the superconducting transition temperature Tc, either. Although
the decrease of the Cu NQR intensity with decreasing T (wipeout) has been
observed in this system, it can be understood by considering the loss of the
itinerant nature of the electrons, which takes place in the proximity region of
the metal-insulator phase boundary, and cannot be connected with the static or
quasi static "stripe" order.
