A225191 Numbers n such that (15^n + 2^n)/17 is prime.
3, 67, 199, 479, 563, 2243, 2579, 6599, 7951, 10099, 10909, 13759
Offset: 1
Programs
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Mathematica
Select[Prime[Range[1, 100000]], PrimeQ[(15^# + 2^#)/17]&]
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PARI
forprime(p=3,10^6, if(ispseudoprime((15^p + 2^p)/17), print1(p,", ") ) ); \\ Joerg Arndt, Jul 29 2013
Extensions
Removed incorrect first term of "2".
Comments