This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A258598 #13 Aug 16 2024 20:50:21
%S A258598 17,51,153,459,1377,4131,12393,37179,111537,334611,1003833,3011499,
%T A258598 9034497,27103491,81310473,243931419,731794257,2195382771,6586148313,
%U A258598 19758444939,59275334817,177826004451,533478013353,1600434040059,4801302120177,14403906360531
%N A258598 a(n) = 17*3^n.
%H A258598 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (3).
%F A258598 G.f.: 17/(1-3*x).
%F A258598 a(n) = 3*a(n-1).
%F A258598 a(n) = 17*A000244(n).
%F A258598 E.g.f.: 17*exp(3*x). - _Elmo R. Oliveira_, Aug 16 2024
%t A258598 Table[17 3^n, {n, 0, 30}]
%t A258598 NestList[3#&,17,30] (* _Harvey P. Dale_, Oct 14 2022 *)
%o A258598 (Magma) [17*3^n: n in [0..30]];
%Y A258598 Cf. similar sequences listed in A258597.
%Y A258598 Cf. A000244.
%K A258598 nonn,easy
%O A258598 0,1
%A A258598 _Vincenzo Librandi_, Jun 05 2015