A078179 - OEIS

%I #7 Jul 17 2014 03:07:15

%S 5,11,19,29,41,349,71,89,109,131,20747,181,2177953337809371149,239,

%T 271,83537,5849,379,419,461,2494357909,279863,599,15649,701,19709,811,

%U 420707233300229,929,991

%N Primes of the form n^k + n - 1, where k>=2 is minimal.

%C a(n) = n^A078178(n) + n - 1.

%H Reinhard Zumkeller, <a href="/A078179/b078179.txt">Table of n, a(n) for n = 2..100</a>

%e 349=A000040(70)=7^3+7-1 and 7^2+7-1=5*11, therefore a(7)=349.

%o (Haskell)

%o a078179 n = n ^ (a078178 n) + n - 1  -- _Reinhard Zumkeller_, Jul 16 2014

%Y Cf. A078178, A076846.

%Y Cf. A010051, A002327.

%K nonn

%O 2,1

%A _Reinhard Zumkeller_, Nov 20 2002

%E More terms from Benoit Cloitre, Nov 20 2002

%E Offset corrected by _Reinhard Zumkeller_, Jul 16 2014