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 A135982 #11 Mar 11 2024 11:33:01
%S A135982 127,2147483647,36028797018963967,604462909807314587353087,
%T A135982 10141204801825835211973625643007,
%U A135982 170141183460469231731687303715884105727
%N A135982 a(n) = 2^(24n+7)-1.
%H A135982 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (16777217,-16777216).
%F A135982 a(n) = 2^A135659(n) - 1.
%F A135982 G.f.: ( 127+16777088*x ) / ( (16777216*x-1)*(x-1) ). - R. J. Mathar, Apr 02 2012
%t A135982 Table[2^(24n + 7) - 1, {n, 0, 20}]
%o A135982 (PARI) a(n)=2^(24*n+7)-1 \\ _Charles R Greathouse IV_, Oct 16 2015
%Y A135982 Cf. A107006, A124477, A135657.
%K A135982 nonn,easy
%O A135982 0,1
%A A135982 _Artur Jasinski_, Dec 09 2007