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%I #24 Sep 08 2022 08:44:38
%S 3,729,177147,43046721,10460353203,2541865828329,617673396283947,
%T 150094635296999121,36472996377170786403,8862938119652501095929,
%U 2153693963075557766310747,523347633027360537213511521
%N a(n) = 3^(5*n + 1).
%H Vincenzo Librandi, <a href="/A013826/b013826.txt">Table of n, a(n) for n = 0..200</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 (243).
%F From _Philippe Deléham_, Nov 26 2008: (Start)
%F a(n) = 243*a(n-1); a(0)=3.
%F G.f.: 3/(1-243*x). (End)
%t NestList[243#&,3,20] (* _Harvey P. Dale_, Jan 26 2013 *)
%o (Magma) [3^(5*n+1): n in [0..15]]; // _Vincenzo Librandi_, Jul 07 2011
%o (Maxima) makelist(3^(5*n+1),n,0,20); /* _Martin Ettl_, Oct 21 2012 */
%o (PARI) a(n)=3^(5*n+1) \\ _Charles R Greathouse IV_, Jul 11 2016
%K nonn,easy
%O 0,1
%A _N. J. A. Sloane_
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