Each file below contains a prefix of the lexicographically least word on the non-negative integers that avoids a/b-powers. In all, 910 rational numbers a/b are represented, with prefix lengths ranging from 50000 to 1250000. The entire data set is approximately 790 MB in size. The structure of many of these words was established with my package SymbolicWords. See my paper with Lara Pudwell for more details.