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 A061170 #11 Jan 17 2017 12:31:39
%S A061170 1,70,905,6666,37580,181074,786715,3176210,12139859,44471340,
%T A061170 157483176,542468100,1826073525,6028577566,19573942365,62643859374,
%U A061170 197971385860,618724626390,1914707164559,5873145245930
%N A061170 Fourth column of Lucas bisection triangle (even part).
%C A061170 Numerator of g.f. is row polynomial Sum_{m=0..6} A061186(4,m)*x^m.
%H A061170 Matthew House, <a href="/A061170/b061170.txt">Table of n, a(n) for n = 0..2354</a>
%H A061170 <a href="/index/Rec#order_08">Index entries for linear recurrences with constant coefficients</a>, signature (12,-58,144,-195,144,-58,12,-1).
%F A061170 a(n) = A060923(n+3, 3).
%F A061170 G.f.: (1+58*x+123*x^2-278*x^3+193*x^4-72*x^5+16*x^6)/(1-3*x+x^2)^4.
%Y A061170 Cf. A002878(n) = A060923(n, 0).
%Y A061170 Cf. A060934, A061169.
%K A061170 nonn,easy
%O A061170 0,2
%A A061170 _Wolfdieter Lang_, Apr 20 2001