Department of Mathematics, Linköpings Universitet, SE-581 83 Linköping, Sweden ; Department of Numerical Analysis and Computer Science, Royal Insitute of Technology, SE-100 44 Stockholm, Sweden
Abstract:
We note that three factors are missing from Table 1 in Factors of generalized Fermat numbers by A. Björn and H. Riesel published in Math. Comp. 67 (1998), 441-446.