A120773 - OEIS

%I #13 Sep 08 2022 08:45:26

%S 0,-1,7,485,65455,33554189,68719476007,562949953419125,

%T 18446744073709545055,2417851639229258349392669,

%U 1267650600228229401496703146327,2658455991569831745807614120560512005

%N a(n) = 2^(n^2) - 3^n.

%H Vincenzo Librandi, <a href="/A120773/b120773.txt">Table of n, a(n) for n = 0..35</a>

%t Table[2^(n^2)-3^n,{n,0,14}] (* _Harvey P. Dale_, May 08 2011 *)

%o (Magma) [2^(n^2)-3^n: n in [0..15]]; // _Vincenzo Librandi_, May 10 2011

%Y Cf. A007689, A001047.

%K sign

%O 0,3

%A _Mohammad K. Azarian_, Aug 18 2006