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 A195910 #18 Sep 08 2022 08:45:59
%S A195910 0,2,-2,0,2,-3,0,1,-6,0,1,-225,0,1,8,0,1,4,-1,1,3,-1,1,2,-2,0,2,-3,0,
%T A195910 1,-6,0,1,-75,0,1,8,0,1,4,-1,1,3,-1,1,2,-2,0,2,-3,0,1,-6,0,1,-45,0,1,
%U A195910 9,0,1,4,-1,1,3,-1,1,2,-2,0,2,-3,0,1,-5,0,1,-32
%N A195910 a(n) = ceiling(tan(n)).
%H A195910 Vincenzo Librandi, <a href="/A195910/b195910.txt">Table of n, a(n) for n = 0..1000</a>
%t A195910 Table[Ceiling[Tan[n]], {n, 0, 100}] (* _T. D. Noe_, Mar 16 2012 *)
%o A195910 (Magma) [Ceiling(Tan(n)): n in [0..80]]; // _Vincenzo Librandi_, Feb 15 2013
%Y A195910 Cf. A000503, A037448, A195911.
%K A195910 sign,easy
%O A195910 0,2
%A A195910 _Mohammad K. Azarian_, Mar 15 2012