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 A124090 #7 Jul 31 2015 20:40:49
%S A124090 0,7,35,119,329,791,1715,3431,6434,11439,19447,31823,50387,77519,
%T A124090 116279,170543,245156,346103,480699,657799,888029,1184039,1560779,
%U A124090 2035799,2629574,3365855,4272047,5379615,6724519,8347679,10295471,12620255
%N A124090 C(n,7)-1.
%H A124090 <a href="/index/Rec#order_08">Index entries for linear recurrences with constant coefficients</a>, signature (8, -28, 56, -70, 56, -28, 8, -1).
%p A124090 [seq(binomial(n,7)-1,n=7..47)];
%t A124090 Binomial[Range[7,50],7]-1 (* or *) LinearRecurrence[{8,-28,56,-70,56,-28,8,-1},{0,7,35,119,329,791,1715,3431},40] (* _Harvey P. Dale_, Aug 14 2014 *)
%Y A124090 Cf. A000096, A062748, A063258, A062988.
%K A124090 easy,nonn
%O A124090 7,2
%A A124090 _Zerinvary Lajos_, Nov 25 2006