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a(n) = 16^(5*n + 2).
1

%I #15 Jul 21 2024 13:28:01

%S 256,268435456,281474976710656,295147905179352825856,

%T 309485009821345068724781056,324518553658426726783156020576256,

%U 340282366920938463463374607431768211456,356811923176489970264571492362373784095686656,374144419156711147060143317175368453031918731001856

%N a(n) = 16^(5*n + 2).

%H Vincenzo Librandi, <a href="/A013879/b013879.txt">Table of n, a(n) for n = 0..100</a>

%H Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a>

%H <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (1048576).

%t 16^(5*Range[0,20]+2) (* or *) NestList[1048576#&,256,20] (* _Harvey P. Dale_, Jul 21 2024 *)

%o (Magma) [16^(5*n+2): n in [0..10]]; // _Vincenzo Librandi_, Jul 10 2011

%K nonn,easy

%O 0,1

%A _N. J. A. Sloane_