Primitive divisors of Lucas and Lehmer sequences
arXiv:1201.6659 · doi:10.1090/S0025-5718-1995-1284673-6
Abstract
Stewart reduced the problem of determining all Lucas and Lehmer sequences whose -th element does not have a primitive divisor to solving certain Thue equations. Using the method of Tzanakis and de Weger for solving Thue equations, we determine such sequences for . Further computations lead us to conjecture that, for , the -th element of such sequences always has a primitive divisor.