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 A048510 #20 Sep 08 2022 08:44:57
%S A048510 1,37,122,320,776,1816,4168,9448,21224,47336,104936,231400,507880,
%T A048510 1109992,2416616,5242856,11337704,24444904,52559848,112721896,
%U A048510 241172456,514850792,1096810472,2332033000,4949278696,10485759976,22179479528,46841987048,98784247784
%N A048510 a(n) = T(5,n), array T given by A048505.
%C A048510 n-th difference of a(n), a(n-1), ..., a(0) is (36, 49, 64, 81, ...).
%H A048510 Vincenzo Librandi, <a href="/A048510/b048510.txt">Table of n, a(n) for n = 0..2000</a>
%H A048510 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (7,-18,20,-8).
%F A048510 a(n) = (n^2+21*n+100) * 2^(n-2) - 24. - _Ralf Stephan_, Feb 05 2004
%F A048510 a(n) = 7*a(n-1)-18*a(n-2)+20*a(n-3)-8*a(n-4). - _Colin Barker_, Mar 04 2015
%F A048510 G.f.: (112*x^3-119*x^2+30*x+1) / ((x-1)*(2*x-1)^3). - _Colin Barker_, Mar 04 2015
%t A048510 LinearRecurrence[{7,-18,20,-8},{1,37,122,320},30] (* _Harvey P. Dale_, Sep 24 2016 *)
%o A048510 (Magma) [(n^2+21*n+100) * 2^(n-2) - 24: n in [0..30]]; // _Vincenzo Librandi_, Sep 26 2011
%o A048510 (PARI) Vec((112*x^3-119*x^2+30*x+1)/((x-1)*(2*x-1)^3) + O(x^100)) \\ _Colin Barker_, Mar 04 2015
%K A048510 nonn,easy
%O A048510 0,2
%A A048510 _Clark Kimberling_