A103111 Smallest natural number m such that n^n^n + m is prime.
1, 1, 16, 75, 2994, 96545
Offset: 1
Examples
a(5)=2994 because 5^5^5 + 2994 is prime and 5^5^5 + k is composite for 0<k<2994.
Programs
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PARI
a(n)=(x->nextprime(x)-x)(n^n^n) \\ Charles R Greathouse IV, Nov 25 2014
Extensions
a(6) from Donovan Johnson, Mar 06 2008