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 A145593 #10 May 11 2024 19:05:37
%S A145593 -1,3,4,-7,24,-47,104,-207,424,-847,1704,-3407,6824,-13647,27304,
%T A145593 -54607,109224,-218447,436904,-873807,1747624,-3495247,6990504,
%U A145593 -13981007,27962024,-55924047,111848104,-223696207,447392424,-894784847
%N A145593 Inverse binomial transform of A144472.
%C A145593 From the third entry on, the last digits have period 2.
%H A145593 Harvey P. Dale, <a href="/A145593/b145593.txt">Table of n, a(n) for n = 0..1000</a>
%H A145593 <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (-2, 1, 2).
%F A145593 G.f.: (1-x-11x^2)/((1+2x)(1+x)(x-1)). - _R. J. Mathar_, Oct 24 2008
%F A145593 a(n)=(5*2^n/3-9/2)*(-1)^n+11/6. - _R. J. Mathar_, Oct 24 2008
%t A145593 LinearRecurrence[{-2,1,2},{-1,3,4},30] (* _Harvey P. Dale_, May 11 2024 *)
%K A145593 sign
%O A145593 0,2
%A A145593 _Paul Curtz_, Oct 14 2008
%E A145593 Extended by _R. J. Mathar_, Oct 24 2008