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%I #16 Apr 09 2024 05:47:41
%S 5,35,245,1715,12005,84035,588245,4117715,28824005,201768035,
%T 1412376245,9886633715,69206436005,484445052035,3391115364245,
%U 23737807549715,166164652848005,1163152569936035,8142067989552245,56994475926865715
%N a(n) = 5*7^n.
%H Vincenzo Librandi, <a href="/A193577/b193577.txt">Table of n, a(n) for n = 0..1000</a>
%H <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (7).
%F G.f.: 5/(1-7*x).
%F a(n) = 7*a(n-1), a(0)=5.
%t 5 7^Range[0,20] (* or *) NestList[7#&,5,20] (* _Harvey P. Dale_, Dec 10 2017 *)
%o (Magma) [5*7^n: n in [0..20]];
%Y Cf. A005055.
%Y Cf. A169634, A000420.
%K nonn,easy
%O 0,1
%A _Vincenzo Librandi_, Sep 15 2011
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