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 A087584 #18 Mar 26 2024 14:45:26
%S A087584 1,9,122,1467,18205,223992,2762333,34044669,419657674,5172750495,
%T A087584 63760719089,785929242096,9687552661513,119411072879553,
%U A087584 1471889315038010,18142857823403763,223633182327192277,2756555811704284776,33977962780753446341,418820453306656692885
%N A087584 a(n) = (1/7)*Sum_{k=0..n} binomial(n,k)*Fibonacci(k)*7^k.
%H A087584 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (9,41).
%F A087584 a(n) = 9*a(n-1) + 41*a(n-2).
%F A087584 G.f.: 1 / (-41*x^2-9*x+1). - _Colin Barker_, Aug 08 2013
%Y A087584 Cf. A014445, A057088, A015553.
%K A087584 nonn,easy
%O A087584 0,2
%A A087584 _Benoit Cloitre_, Oct 25 2003
%E A087584 More terms from _Colin Barker_, Aug 08 2013