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 A067986 #4 Mar 31 2012 13:20:07 %S A067986 47,217,539,1201,2460,4826,9171,17047,31153,56185,100258,177348, %T A067986 311431,543509,943495,1630289,2805624,4811038,8223627,14016755, %U A067986 23829437,40417337,68406974,115555656,194854175 %N A067986 Convolution of L(n+1) := A000204(n+1) (Lucas), n>=0, with L(n+8), n>=0. %C A067986 Eighth diagonal of triangle A067979. Eighth column of triangle A067990. %F A067986 a(n)= sum(L(k+1)*L(n+8-k), k=0..n) = (76*n+47)*F(n+1)+47*(n+1)*F(n), with F(n) := A000045(n) (Fibonacci). %F A067986 G.f.: (47+29*x)*(1+2*x)/(1-x-x^2)^2. %K A067986 nonn,easy %O A067986 0,1 %A A067986 _Wolfdieter Lang_, Feb 15 2002