The AMS makes it rather difficult for an individual to learn how to get ahold of this e-book! —Dan -----

From https://homes.cerias.purdue.edu/~ssw/cun/index.html

The Cunningham Project seeks to factor the numbers b^n +- 1 for b = 2, 3, 5, 6, 7, 10, 11, 12, up to high powers n. The Cunningham tables are the tables in the book *"Factorizations of b^n +- 1, b = 2, 3, 5, 6, 7, 10, 11, 12 up to high powers,*" by John Brillhart, D. H. Lehmer, J. L. Selfridge, Bryant Tuckerman, and S. S. Wagstaff, Jr., American Mathematical Society, Providence, Rhode Island, third edition, 2002. Although the first two editions were published as paper books, the third edition is an electronic book available at http://www.ams.org/books/conm/022/ . -----