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 A061181 #3 Mar 31 2012 13:20:05 %S A061181 1,27,315,2534,16407,91959,464723,2171850,9546570,39940460,160437690, %T A061181 622844730,2348773525,8638447293,31086197469,109744786482, %U A061181 380920122009,1302304276665,4392297900647 %N A061181 Sixth column (m=5) of triangle A060920 (bisection of Fibonacci triangle, even part). %C A061181 Numerator polynomial of g.f. is sum(A061176(6,m)*x^m,m=0..6). %F A061181 a(n)= A060920(n+5, 5). %F A061181 G.f.: ((1+x^6)+9*(x+x^5)-30*(x^2+x^4)+41*x^3)/(1-3*x+x^2)^6. %Y A061181 A061180. %K A061181 nonn,easy %O A061181 0,2 %A A061181 _Wolfdieter Lang_, Apr 20 2001