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 A060932 #7 Apr 08 2021 04:13:20 %S A060932 1,18,159,942,4311,16536,55898,171924,491487,1325546,3409347,8430246, %T A060932 20164223,46880424,106350942,236147828,514553154,1102562952, %U A060932 2327442276,4847463408,9974081130,20297335340 %N A060932 Fifth convolution of Lucas numbers A000032(n+1), n >= 0. %H A060932 G. C. Greubel, <a href="/A060932/b060932.txt">Table of n, a(n) for n = 0..1000</a> %H A060932 <a href="/index/Rec#order_12">Index entries for linear recurrences with constant coefficients</a>, signature (6,-9,-10,30,6,-41,-6,30,10,-9,-6,-1). %F A060932 a(n) = A060922(n+5, 5) (sixth column of Lucas triangle). %F A060932 G.f.: ((1+2*x)/(1-x-x^2))^6. %F A060932 a(n) = ( 25*(125*n^5 +825*n^4 +1925*n^3 +2895*n^2 +2990*n +744)*L(n+2) +(1875*n^5 +13125*n^4 +31875*n^3 +37875*n^2 +29250*n +19200)*L(n+1))/(5!*5^4), with the Lucas numbers L(n)=A000032(n). %t A060932 Table[((744+2990*n+2895*n^2+1925*n^3+825*n^4+125*n^5)*LucasL[n+2] +3*(256+390*n + 505*n^2+425*n^3+175*n^4+25*n^5)*LucasL[n+1])/(5^2*5!), {n,0,40}] (* _G. C. Greubel_, Apr 08 2021 *) %o A060932 (Magma) %o A060932 R<x>:=PowerSeriesRing(Integers(), 40); %o A060932 Coefficients(R!( ((1+2*x)/(1-x-x^2))^6 )); // _G. C. Greubel_, Apr 08 2021 %o A060932 (Sage) %o A060932 def A060932_list(prec): %o A060932 P.<x> = PowerSeriesRing(ZZ, prec) %o A060932 return P( ((1+2*x)/(1-x-x^2))^6 ).list() %o A060932 A060932_list(40) # _G. C. Greubel_, Apr 08 2021 %Y A060932 Cf. A000032, A000204, A004799, A060922, A060929, A060930, A060931. %K A060932 nonn,easy %O A060932 0,2 %A A060932 _Wolfdieter Lang_, Apr 20 2001