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 A146081 #11 Jun 29 2023 23:39:04
%S A146081 110,184,258,332,406,480,554,628,702,776,850,924,998,1072,1146,1220,
%T A146081 1294,1368,1442,1516,1590,1664,1738,1812,1886,1960,2034,2108,2182,
%U A146081 2256,2330,2404,2478,2552,2626,2700,2774,2848,2922,2996,3070,3144,3218,3292
%N A146081 First differences of A145980.
%H A146081 G. C. Greubel, <a href="/A146081/b146081.txt">Table of n, a(n) for n = 0..10000</a>
%H A146081 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2, -1).
%F A146081 From _R. J. Mathar_, Oct 31 2008: (Start)
%F A146081 a(n) = 2*a(n-1)-a(n-2).
%F A146081 G.f.: 2(55-18x)/(1-x)^2. (End)
%F A146081 From _G. C. Greubel_, Jan 29 2016: (Start)
%F A146081 a(n) = 74*n + 110.
%F A146081 E.g.f.: (74*x + 110)*exp(x). (End)
%t A146081 LinearRecurrence[{2, -1}, {110, 184}, 100] (* _G. C. Greubel_, Jan 29 2016 *)
%K A146081 nonn,easy
%O A146081 0,1
%A A146081 _Paul Curtz_, Oct 27 2008
%E A146081 Extended by _R. J. Mathar_, Oct 31 2008