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On prime divisors of remarkable sequences. (English) Zbl 1135.11333

Summary: In this paper we study sequences of the form \((a^n +b)_{n=1}^{\infty}\), where \(a, b\in N\). We prove many interesting results in connection with sequences with infinitely many prime divisors.

MSC:

11N13 Primes in congruence classes
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