And guess what. I've been overruled. The person I consulted with points out that Formats does indeed say to add the braille for implied page numbers. And the fact that there are items listed in the index with page numbers serves as enough of an implication! I have been convinced that this is a better answer, so follow print for listing items in the index and simply add the implied print page numbers. See Formats 2.7.1. It says NOT to add page numbers when there are no actual or implied page numbers. The index listing implies those numbers. so go ahead and add them. No TN needed.