Equations with Arithmetic Functions of Pell Numbers
NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF APPLIED MATHEMATICS
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Here, we prove some diophantine results about the Euler function of Pell numbers and their Pell-Lucas companion sequence. For example, if the Euler function of the nth Pell number Pn or Pell-Lucas companion number Qn is a power of 2, then n or 8.
- Numerical Mathematics