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a(n) = 7^(5*n + 2).
1

%I #13 Sep 08 2022 08:44:38

%S 49,823543,13841287201,232630513987207,3909821048582988049,

%T 65712362363534280139543,1104427674243920646305299201,

%U 18562115921017574302453163671207,311973482284542371301330321821976049,5243338316756303634461458718861951455543

%N a(n) = 7^(5*n + 2).

%H Vincenzo Librandi, <a href="/A013843/b013843.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 (16807).

%o (Magma) [7^(5*n+2): n in [0..15]]; // _Vincenzo Librandi_, Jul 08 2011

%K nonn,easy

%O 0,1

%A _N. J. A. Sloane_