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%I #22 Sep 08 2022 08:44:38
%S 12,1728,248832,35831808,5159780352,743008370688,106993205379072,
%T 15407021574586368,2218611106740436992,319479999370622926848,
%U 46005119909369701466112,6624737266949237011120128
%N a(n) = 12^(2*n + 1).
%H Vincenzo Librandi, <a href="/A013717/b013717.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 (144).
%F From _Philippe Deléham_, Nov 25 2008: (Start)
%F a(n) = 144*a(n-1), a(0)=12.
%F G.f.: 12/(1-144*x). (End)
%p seq(12^(2*n+1),n=0..11); # _Nathaniel Johnston_, Jun 25 2011
%o (Magma) [12^(2*n+1): n in [0..15]]; // _Vincenzo Librandi_, Jun 26 2011
%o (PARI) a(n)=12^(2*n+1) \\ _Charles R Greathouse IV_, Jul 11 2016
%Y Bisection of A001021.
%Y Cf. A013708-A013716, A013718-A013729.
%K nonn,easy
%O 0,1
%A _N. J. A. Sloane_
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