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 A139279 #22 Sep 08 2022 08:45:33 %S A139279 8,48,88,128,168,208,248,288,328,368,408,448,488,528,568,608,648,688, %T A139279 728,768,808,848,888,928,968,1008,1048,1088,1128,1168,1208,1248,1288, %U A139279 1328,1368,1408,1448,1488,1528,1568,1608,1648,1688,1728,1768,1808,1848 %N A139279 a(n) = 40*n - 32. %C A139279 Multiples of 8 with unit digit equal to 8. %H A139279 Vincenzo Librandi, <a href="/A139279/b139279.txt">Table of n, a(n) for n = 1..2000</a> %H A139279 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1). %F A139279 a(n) = a(n-1) + 40. %F A139279 From _G. C. Greubel_, Jul 18 2017: (Start) %F A139279 G.f.: (72*x - 32)/(1-x)^2. %F A139279 E.g.f.: (40*x - 32)*exp(x). (End) %t A139279 NestList[#+40&,8,50] (* _Harvey P. Dale_, Oct 02 2013 *) %o A139279 (Magma) [40*n-32: n in [1..50]]; // _Vincenzo Librandi_, Jun 19 2011 %o A139279 (PARI) a(n)=40*n-32 \\ _Charles R Greathouse IV_, Aug 25 2014 %Y A139279 Subsequence of A034709, together with A017281, A017293, A139222, A139245, A017329, A139249, A139264 and A139280. %K A139279 nonn,easy %O A139279 1,1 %A A139279 _Odimar Fabeny_, Jun 06 2008 %E A139279 More terms from _Reinhard Zumkeller_, Jun 22 2008 %E A139279 New definition from _Paolo P. Lava_, Sep 06 2010