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a(n) = 5^(n^2)+3^(n^2).
1

%I #14 May 21 2023 21:44:08

%S 2,8,706,1972808,152630937346,298024071165562568,

%T 14551915378461487103639746,17763568394241803976008724219043208,

%U 542101086242755650687546692947455513561979906

%N a(n) = 5^(n^2)+3^(n^2).

%H Vincenzo Librandi, <a href="/A120838/b120838.txt">Table of n, a(n) for n = 0..30</a>

%t Table[5^(n^2) + 3^n^2, {n, 0, 10}] (* _Vincenzo Librandi_, Feb 27 2013 *)

%o (Magma) [5^(n^2) + 3^(n^2): n in [0..10]]; // _Vincenzo Librandi_, Feb 27 2013

%o (PARI) a(n)=5^(n^2)+3^(n^2) \\ _Charles R Greathouse IV_, Feb 27 2013

%Y Cf. A007689, A001047.

%K nonn,easy

%O 0,1

%A _Mohammad K. Azarian_, Aug 18 2006

%E Corrected by _Ray Chandler_, Sep 06 2006