%I #17 Sep 08 2022 08:45:32
%S 20,106,2914,76066,48653026,1219116994,762810444034,19072324590946,
%T 11920834820287906,186264446293255209154,4656612255406143777826,
%U 72759575691550490581159234,45474735052173417717604422274,1136868376887903338795354772706,710542735733511371652904252645666
%N a(n) = 5^prime(n) - 3^prime(n) + 2^prime(n).
%H Vincenzo Librandi, <a href="/A135174/b135174.txt">Table of n, a(n) for n = 1..200</a>
%F a(n)= 5^A000040(n) - 3^A000040(n) + 2^A000040(n).
%e a(4)=76066 because the 4th prime number is 7, 5^7=78125, 3^7=2187, 2^7=128 and 78125-2187+128=76066.
%t Table[5^p-3^p+2^p,{p,Prime[Range[20]]}] (* _Harvey P. Dale_, Dec 12 2013 *)
%o (Magma) [5^p-3^p+2^p: p in PrimesUpTo(100)]; // _Vincenzo Librandi_, Dec 14 2010
%Y Cf. A000040.
%Y Cf. 2^p: A034785; 3^p: A057901; 5^p: A057902.
%K nonn,easy
%O 1,1
%A _Omar E. Pol_, Nov 25 2007
%E More terms from _Vincenzo Librandi_, Dec 14 2010