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 A061180 #7 Sep 01 2022 14:03:04
%S A061180 1,20,190,1295,7285,36122,163730,693835,2790100,10758050,40075630,
%T A061180 145052300,512347975,1772132390,6018885570,20118711993,66306068715,
%U A061180 215797999830,694463680160,2212291834405,6982976069384
%N A061180 Fifth column (m=4) of triangle A060920 (bisection of Fibonacci triangle, even part).
%C A061180 Numerator polynomial of g.f. is sum(A061176(5,m)*x^m, m=0..5).
%H A061180 <a href="/index/Rec#order_10">Index entries for linear recurrences with constant coefficients</a>, signature (15, -95, 330, -685, 873, -685, 330, -95, 15, -1).
%F A061180 a(n) = A060920(n+4,4).
%F A061180 G.f.: ((1-x^5)+5*(x-x^4)-15*(x^2-x^3))/(1-3*x+x^2)^5.
%t A061180 CoefficientList[Series[((1-x^5)+5(x-x^4)-15(x^2-x^3))/(1-3x+x^2)^5,{x,0,40}],x] (* or *) LinearRecurrence[{15,-95,330,-685,873,-685,330,-95,15,-1},{1,20,190,1295,7285,36122,163730,693835,2790100,10758050},30] (* _Harvey P. Dale_, Sep 01 2022 *)
%Y A061180 Cf. A061179.
%K A061180 nonn,easy
%O A061180 0,2
%A A061180 _Wolfdieter Lang_, Apr 20 2001