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 A160853 #17 Sep 08 2022 08:45:45
%S A160853 1,154,2287,14735,61227,193897,510420,1175273,2445121,4698328,8468593,
%T A160853 14482711,23702459,37370607,57061054,84733089,122789777,174140470,
%U A160853 242267443,331296655,446072635,592237493,776314056,1005793129
%N A160853 Expansion of (1+147*x+1230*x^2+1925*x^3+754*x^4+67*x^5+x^6)/(1-x)^7.
%C A160853 Source: the De Loera et al. article and the Haws website listed in A160747.
%H A160853 Vincenzo Librandi, <a href="/A160853/b160853.txt">Table of n, a(n) for n = 0..10000</a>
%H A160853 <a href="/index/Rec#order_07">Index entries for linear recurrences with constant coefficients</a>, signature (7,-21,35,-35,21,-7,1).
%F A160853 a(n) = 1 +n*(n+1)*(1375*n^4+4022*n^3+6573*n^2+4582*n+1808)/240. - _R. J. Mathar_, Sep 17 2011
%p A160853 seq(coeff(series((1+147*x+1230*x^2+1925*x^3+754*x^4+67*x^5+x^6)/(1-x)^7, x,n+1),x,n),n=0..25); # _Muniru A Asiru_, Apr 29 2018
%t A160853 LinearRecurrence[{7,-21,35,-35,21,-7,1}, {1, 154, 2287, 14735, 61227, 193897, 510420}, 40] (* _G. C. Greubel_, Apr 28 2018 *)
%o A160853 (Magma) [1 +n*(n+1)*(1375*n^4+4022*n^3+6573*n^2+4582*n+1808)/240: n in [0..30]]; // _Vincenzo Librandi_, Sep 20 2011
%o A160853 (PARI) x='x+O('x^30); Vec((1+147*x+1230*x^2+1925*x^3+754*x^4+67*x^5 + x^6)/(1-x)^7) \\ _G. C. Greubel_, Apr 28 2018
%K A160853 nonn,easy
%O A160853 0,2
%A A160853 _N. J. A. Sloane_, Nov 18 2009