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 A135659 #23 Oct 25 2016 14:25:30
%S A135659 7,31,55,79,103,127,151,175,199,223,247,271,295,319,343,367,391,415,
%T A135659 439,463,487,511,535,559,583,607,631,655,679,703,727,751,775,799,823,
%U A135659 847,871,895,919,943,967,991,1015,1039,1063,1087,1111,1135,1159,1183,1207
%N A135659 a(n) = 24*n + 7.
%C A135659 Conjecture: All Mersenne Primes (A000668) > 3 are in this sequence.
%H A135659 G. C. Greubel, <a href="/A135659/b135659.txt">Table of n, a(n) for n = 0..1000</a>
%H A135659 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1).
%F A135659 From _Colin Barker_, Apr 02 2012: (Start)
%F A135659 a(n) = 2*a(n-1) - a(n-2).
%F A135659 G.f.: (7+17*x)/(1-x)^2. (End)
%F A135659 E.g.f.: (7 + 24*x)*exp(x). - _G. C. Greubel_, Oct 25 2016
%t A135659 Table[24n + 7, {n, 0, 100}]
%t A135659 LinearRecurrence[{2,-1},{7,31},60] (* _Harvey P. Dale_, Jul 14 2013 *)
%Y A135659 Cf. A107006, A124477, A135657, A135982.
%K A135659 nonn,easy
%O A135659 0,1
%A A135659 _Artur Jasinski_, Nov 25 2007
%E A135659 Offset changed to 0 by _Omar E. Pol_, Oct 25 2016